BLOGS

Topics: Applied Physics, Chemistry, Entropy, Environment, Existentialism

Humans tend to chronicle worst-case scenarios, such as Armageddon (Judao-Christian), Pralaya (Hindu), and Ragnarok (Norse). If you follow the scripts for each, there is a "hack": a insisted upon "happy ending" where everything is reborn anew, and those bothersome "others" that you couldn't legislate or exterminate are killed off in the melee.

There have never been once concluded two possibilities: 1) we can try to avoid Mutually Assured Destruction (M.A.D., the actual nuclear "strategy," and 2) happy endings only work for fairy tales, and physics is kind of unforgiving.

WASHINGTON, Jan 28 (Reuters) - Atomic scientists on Tuesday moved their "Doomsday Clock" closer to midnight than ever before, citing Russian nuclear threats amid its invasion of Ukraine, tensions in other world hot spots, military applications of artificial intelligence and climate change as factors underlying the risks of global catastrophe.

The Bulletin of the Atomic Scientists set the clock to 89 seconds before midnight - the theoretical point of annihilation. That is one second closer than it was set last year. The Chicago-based nonprofit created the clock in 1947 during the Cold War tensions that followed World War Two to warn the public about how close humankind was to destroying the world.

Atomic scientists adjust 'Doomsday Clock' closer than ever to midnight, Will Dunham, Reuters

Emissions of Carbon Dioxide in the Transportation Sector, Motor Vehicle Miles Traveled, and Emissions per Mile Traveled by Light-Duty Vehicles Measured as a Percentage of Their Value in 1975 - Transportation sector emissions have not risen nearly as much as vehicle miles traveled because gains in fuel economy have reduced emissions per mile of travel.

Image source: Emissions of Carbon Dioxide in the Transportation Sector, Congressional Budget Office (CBO), December 2022

Topics: Chemistry, Climate Change, Environment, Existentialism, Global Warming

Comment: Americans go above and beyond anything suggested, even if the goal is to improve things. Americans in particular, and humans in general like "quick fixes" that don't disrupt their lives and approximate what they're used to doing already. Lithium is an energetic element, number 3 on the Periodic Table, following Hydrogen and Helium. Its properties as an anode are why we use the element in battery technology. It's now "trendy" to own an Electric Vehicle, when during the pandemic (see the dip above in Fig. 10 from the CBO report), the simplest solution - at least short term - would be to drive less. This might entail telework agreements to come into the office on set days in a pay period. It could also mean an infrastructure centered around public transportation, Maglev trains such as in China, Japan, and Korea. A longer-term solution would be a total revision of what we regard as capital, earnings, and quarterly profits, which seem shortsighted and not strategically positioned for the global environment or species survival.

Lithium is an essential component of clean energy technologies, from electric vehicles (EVs) to the big batteries used to store electricity at power plants. It is an abundant mineral, but to be used it must be extracted from the earth and processed. 

Today, there are two main ways to pull lithium from the ground. Until recently, most lithium mining occurred in Chile, where lithium is extracted from brines: salty liquid found at the Earth’s surface or underground. To extract lithium, that liquid is pumped from the earth and then placed in pools where the water can evaporate, leaving behind lithium and other elements.

Elsewhere, lithium mining looks more traditional. In 2017, Australia overtook Chile as the dominant lithium producer. Companies there blast a lithium-rich mineral called spodumene out of open pits. Today, Australia produces roughly half of the globe’s supplies.¹ More than 80 percent of that rock then travels to China, where it’s further processed to yield lithium.²

Though Australia and Chile dominate production, the rise of clean energy has spurred a growing hunger for lithium, so other mining operations have cropped up in numerous other places. Global lithium production has grown from about 37,000 tons a decade ago to 130,000 tons in 2022.^1,3

“We've just seen an explosion of proposed projects in the planning, piloting, demonstration stage across a much wider array of countries,” says Caroline White-Nockleby, a PhD candidate who studies renewable energy transitions in MIT’s doctoral program in History and anthropology; and Science, Technology, and Society.

How is Lithium mined? MIT Climate Portal

Related articles:

Elon Musk, ready to dry up Texas: He wants what has been underground for millions of years, Sanusha S., Eco News, January 13, 2025, in Energy

How demand for lithium batteries could drain America’s water resources, PBS News Hour, January 25, 2024

Ice sample on the melter during continuous ice core chemical analyses at the Desert Research Institute (Credit: Sylvain Masclin)

Topics: Chemistry, Civilization, Democracy, Environment, Existentialism

It’s perhaps historically appropriate that the word “ironic” contains “iron.” Mining and smelting minerals like iron represented technological highs at the Roman Empire’s peak. But those activities also produced enough lead pollution to impair its citizens’ IQs, according to a new study in PNAS.

“Detailed ice core records of Arctic lead pollution, together with sophisticated atmospheric modeling and modern epidemiology, indicate that human industrial activities were measurably damaging human health more than 2,000 years ago,” says Joe McConnell, a scientist at the Desert Research Institute and lead author of the study.

Scholars have debated lead poisoning’s impact on Roman history for decades. Some have even argued that lead poisoning played a role in the downfall of the Roman empire. Most of those arguments have focused on ancient writings and archeology that provide hints about lead’s impact — circumstantial evidence, if you will.

Now a team of researchers has provided hard evidence linking pollution and ancient intellect. They identified the level of pollutants in three ice cores that dated between 500 B.C.E. through 600 C.E. — the era spanning the rise of the Roman Republic through the fall of the Roman Empire. Then they compared those levels with how lead pollution affected the general public during its peak in the 1970s, before it was banned from gasoline.

According to the study, the lead in the air in Roman times affected IQs by about a third as much as in the late 1970s, when the U.S. Clean Air Act went into effect, and about twice as much as in the early 2010s.

“Elites and non-elites in cities and rural areas alike were affected by the background air pollution — no one could escape the health effects," says McConnell.

Ancient Lead Poisoning May Have Contributed to the Roman Empire’s Downfall, Paul Smaglik, Discover Magazine

CROCUS researchers crossed Chicago’s Michigan Avenue as they collected data on how buildings, streets, and greenspaces impact temperature and air quality. (Image by Argonne National Laboratory.)

Topics: Civilization, Climate Change, Environment, Global Warming, Thermodynamics

CROCUS’s Urban Canyon campaign captured data on heat islands and air quality while also helping scientists understand how to conduct a major research initiative in the heart of one of America’s largest cities.

When you picture atmospheric scientists, you might think of them monitoring cloud cover on the open plains or even chasing a twister through a cornfield. You probably don’t imagine teams of people launching weather balloons in the center of one of the largest cities in the U.S.

But that’s what happened this past July during the CROCUS Urban Canyon Campaign in Chicago. Funded by the U.S. Department of Energy’s (DOE) Office of Science, Biological and Environmental Research program, the Community Research on Climate and Urban Science (CROCUS) effort studies urban climate change and the impact it has on local homeowners and businesses.

An urban canyon is a dense city street with buildings on both sides. These confined spaces trap heat, leading to an urban heat island effect. This effect is one factor contributing to cities being warmer than surrounding areas. It can impact energy use, air quality, and overall climate patterns. The goal of the Urban Canyon campaign was to collect data at the street level, where people live and work, and in the boundary layer, where air from the city mixes with the atmosphere.

Over two weeks, CROCUS researchers from Chicago and around the region converged on the city to conduct two intensive measurement sessions. They measured temperature, air quality, and airflow in and around Chicago’s mix of skyscrapers, highways, and neighborhoods. Their data will help inform strategies to mitigate extreme heat and weather while protecting property and infrastructure.

Backed by the support of community partners Blacks in Green (BIG) and the Puerto Rican Agenda, more than 40 scientists and staff collaborated to make the campaign successful. Throughout their work, they snapped pictures of research in action.

Snapshots of urban climate science
Researchers study heat islands and air quality in the heart of Chicago, Gillian-King Carlyle, Argonne National Laboratory

Image source: https://www.istockphoto.com/photos/methane-molecule

Topics: Chemistry, Civilization, Climate Change, Entropy, Environment, Global Warming

The "good news": you can download the PDF for free by registering an email, or read the report from the National Academies of Science and Medicine here. Citizenship takes work and effort to be informed. It would be nice to carry on a little longer than the dinosaurs.

2023 shattered global climate records as the warmest year in the modern record, bringing with it devastating impacts on human and natural systems. About 60% of methane emissions come from human activities and are a major contributor to global warming, second only to carbon dioxide (CO2). Methane is relatively short-lived in the atmosphere but is 80 times more potent than CO2 at trapping heat over a 20-year period. Together with reducing CO2 emissions, rapid and sustained reductions in methane emissions are critical to limit both near- and long-term warming in future decades. However, given the many barriers to achieving needed emissions reductions at scale, researchers are exploring the potential of technologies to remove methane from the atmosphere.

A Research Agenda Toward Atmospheric Methane Removal is the first report of a two-phase study to assess the need and potential for atmospheric methane removal. This report identifies priority research that should be addressed within 3-5 years so that a second-phase assessment could more robustly assess the technical, economic, and social viability of technologies to remove atmospheric methane at climate-relevant scales. The research agenda presented in this report includes foundational research that would help us better understand atmospheric methane removal while also filling knowledge gaps in related fields, and systems research that seek to address what developing and/or deploying atmospheric methane removal at scale would entail. A Research Agenda Toward Atmospheric Methane Removal also assesses five atmospheric methane removal technologies that would accelerate the conversion of methane to a less radiatively potent form or physically remove methane from the atmosphere and store it elsewhere.

Contributor(s): National Academies of Sciences, Engineering, and Medicine; Division on Earth and Life Studies; Division on Engineering and Physical Sciences; Board on Atmospheric Sciences and Climate; Board on Chemical Sciences and Technology; Board on Energy and Environmental Systems; Committee on Atmospheric Methane Removal: Development of a Research Agenda

The hills in Mars' Australe Scopuli region, located near the planet's south pole, are covered in carbon dioxide ice. The darker areas are layers of dust. (Image credit: ESA/DLR/FU Berlin)

Topics: Astrophysics, Environment, ESA, Mars, NASA, Planetary Science, Space Exploration

Snow dots the Martian landscape in these images from ESA's Mars Express orbiter and NASA's Mars Reconnaissance Orbiter.

Hoping for a white Christmas this year? Well, even if there's no snow where you live, at least you can enjoy these images of a "winter" wonderland on Mars.

Taken by the German-built High-Resolution Stereo Camera (HRSC) on the European Space Agency's (ESA) Mars Express orbiter in June 2022, and by NASA's NASA's Mars Reconnaissance Orbiter using its High-Resolution Imaging Science Experiment (HiRISE) camera on September 2022, these images showcase what appears to be a snowy landscape in the Australe Scopuli region of Mars, near the planet's south pole.

But the "snow" seen here is quite different from what we have on Earth.

In fact, it's carbon dioxide ice, and at Mars' south pole, there's a 26-foot-thick (8-meter-thick) layer of it year-round. (These images were actually taken near the summer solstice, not the winter one — it's very cold here all year long.)

So what looks like a beautiful pastoral winter scene in these Mars Express images is actually a dynamic summer scene, where gas jets spew dust across the surface. Hey, at least it's still cold outside — just a casual -193°F (-125°C).

Mars orbiters witness a 'winter wonderland' on the Red Planet (photos), Brett Tingley, Space.com

Topics: Civics, Civil Rights, Civilization, Climate Change, Economics, Environment, Existentialism, Fascism

Tech bros (n): someone, usually a man, who works in the digital technology industry, especially in the United States, and is sometimes thought to not have good social skills and to be too confident about their own ability. Source: Cambridge Dictionary

“The Basic Laws of Human Stupidity,” Carlo M. Cipollo, UC Berkley, Economist, Historian

5 basic laws:

1. Always and inevitably, everyone underestimates the number of stupid individuals in circulation. (E.g., Nazi Germany)
2. The probability that a certain person is stupid is independent of any other characteristics of that person. (E.g., economics, education level, skillset)
3. A stupid person is a person who causes losses to another person or a group of persons while himself deriving no gain and even possibly incurring losses. (E.g., authoritarian governments who destroy their countries, financial meltdowns, etc.)
4. Non-stupid people always underestimate the damaging power of stupid individuals. In particular, non-stupid people constantly forget that at all times and places and under any circumstances, to deal with and (or) to associate with stupid people always turns out to be a costly mistake. (E.g., downplaying their impact, giving them the benefit of the doubt)
5. A stupid person is more dangerous than a pillager. (E.g., Bandits act typically in self-interest. Stupid people don’t consider collateral damage, even to themselves.)

Call it "Dunning-Kruger" on steroids. The lead description on Amazon is ominous:

An economist explains five laws that confirm our worst fears: stupid people can and do rule the world

Throughout history, a powerful force has hindered the growth of human welfare and happiness. It is more powerful than the Mafia or the military. It has global catastrophic effects and can be found anywhere from the world's most powerful boardrooms to your local bar.

It is human stupidity.

I apply stupidity not to intelligence but to behavior that, once achieving arguable success in an area of life, empowers said person to feel they have a right, and in their mind, a duty, to pontificate on other areas of life that they have no experience in, or clue.

 In 1862, a famous Irish physicist and mathematician, Lord Kelvin, estimated that Earth was between 20-million and 400-million years old. While that is an enormous span of time, even an age of 400 million years would make the planet quite young in relation to the rest of the universe. Lord Kelvin based his conclusion on a calculation of how long it would have taken Earth to cool if it had begun as a molten mass. While his estimate was wrong by a significant margin, his technique of drawing conclusions based on observations and calculations was an accurate scientific method. How Did Scientists Calculate the Age of Earth? NatGeo Education

Suffice it to say, Lord Kelvin, for whom the Kelvin scale in Thermodynamics is named for reflecting a "complete absence of thermal energy," was WAY out over his skis!

Lord Kelvin, God bless him, exhibited the logical fallacy called "appeal to authority." He appealed to the fact that he was a superstar in thermodynamics (KNIGHTED, for crying out loud), so he had to be right! The geologists, ahem, the people who study the structure and composition of the Earth, in his mindIn his mind, the geologists, ahem, the people who study the structure and composition of the Earth, were wrong.

So, the "bros" (and most of them are male), have the unfortunate habit of assuming after they conquered the hill in Silicon Valley and became "new money" millionaires and billionaires, they have a right and an obligation to pontificate on matters in society they have no experience in, or clue. The bros might spread misinformation online on a platform they bought that arguably fails to attract other customers and might sue those who have left. They might use their leverage to turn over precedents in our nation's highest court. They are Einstein in their areas of expertise, but Fredo in all others. They are over their skis. They read the Cliff Notes to Atlas Shrugged, and forgot that Ayn Rand ended up on the collectivist scheme she railed against in her latter years: Social Security. For the bros, the government is daddy bailing them out of a jam of their creation usually, and everyone else isn't "special" or daddy's favorite: they are. And they want what they want, damn the economy, the environment, and the planet—he who dies last with the gold wins.

The "bros" should study earnestly the real and fictional outcomes of Boesky and Gekko.

Scientists have found elevated mercury levels in dolphins throughout the Southeast since 2007. Sources: Bryan, Damseaux, Griffin, Stavros, Woshner. Credit: N. Hanacek/NIST

Topics: Biology, Chemistry, Civilization, Environment

In a study with potential implications for the oceans and human health, scientists reported elevated mercury levels in dolphins in the U.S. Southeast, with the greatest levels found in dolphins in Florida’s St. Joseph and Choctawhatchee Bays.

Dolphins are considered a “sentinel species” for oceans and human health because, like us, they are high up in the food chain, live long lives, and share certain physiological traits with humans. Some staples of their diet, such as spot, croaker, weakfish, and other small fish, are most vulnerable to mercury pollution and are also eaten by people.  

The study, which appeared in the journal Toxics, drew no conclusions about Florida and Georgia residents’ mercury levels or the potential health risks to humans. It did, however, cite previous research by a different group of researchers that found a correlation between high mercury levels in dolphins in Florida’s Indian River Lagoon and humans living in the area.

“As a sentinel species, the bottlenose dolphin data presented here can direct future studies to evaluate mercury exposure to human residents” in the Southeast and other potentially affected areas in the United States, the authors of the study in Toxics wrote.

Research Finds Dolphins With Elevated Mercury Levels in Florida and Georgia, National Institute of Standards and Technology (NIST)

Plastic chokes a canal in Chennai, India. Credit: R. Satish Babu/AFP via Getty

Topics: Applied Physics, Biology, Chemistry, Environment, Medicine

People who had tiny plastic particles lodged in a key blood vessel were more likely to experience heart attack, stroke or death during a three-year study.

Plastics are just about everywhere — food packaging, tyres, clothes, water pipes. And they shed microscopic particles that end up in the environment and can be ingested or inhaled by people.

Now, the first data of their kind show a link between these microplastics and human health. A study of more than 200 people undergoing surgery found that nearly 60% had microplastics or even smaller nanoplastics in a main artery¹. Those who did were 4.5 times more likely to experience a heart attack, a stroke, or death in the approximately 34 months after the surgery than were those whose arteries were plastic-free.

“This is a landmark trial,” says Robert Brook, a physician-scientist at Wayne State University in Detroit, Michigan, who studies the environmental effects on cardiovascular health and was not involved with the study. “This will be the launching pad for further studies across the world to corroborate, extend, and delve into the degree of the risk that micro- and nanoplastics pose.”

But Brook, other researchers and the authors themselves caution that this study, published in The New England Journal of Medicine on 6 March, does not show that the tiny pieces caused poor health. Other factors that the researchers did not study, such as socio-economic status, could be driving ill health rather than the plastics themselves, they say.

Landmark study links microplastics to serious health problems, Max Kozlov, Nature.

Fluorine gas etches the surface of silicon into a series of angular peaks that, when viewed with a powerful microscope, look much like the pyramid pattern in the sound-proofing foam shown above. Researchers at PPPL have now modeled how these peaks form in silicon, creating a material that is highly light absorbent. Credit: Pixabay/CC0 Public Domain

Topics: Energy, Environment, Materials Science, Nanomaterials, Solar Power

Researchers at the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) have developed a new theoretical model explaining one way to make black silicon, an important material used in solar cells, light sensors, antibacterial surfaces, and many other applications.

Black silicon is made when the surface of regular silicon is etched to produce tiny nanoscale pits on the surface. These pits change the color of the silicon from gray to black and, critically, trap more light, an essential feature of efficient solar cells.

While there are many ways to make black silicon, including some that use the charged, fourth state of matter known as plasma, the new model focuses on a process that uses only fluorine gas. PPPL Postdoctoral Research Associate Yuri Barsukov said the choice to focus on fluorine was intentional: The team at PPPL wanted to fill a gap in publicly available research. While some papers have been published about the role of charged particles called ions in the production of black silicon, not much has been published about the role of neutral substances, such as fluorine gas.

"We now know—with great specificity—the mechanisms that cause these pits to form when fluorine gas is used," said Barsukov, one of the authors of a new paper about the work, appearing in the Journal of Vacuum Science & Technology A.

"This kind of information, published publicly and openly available, benefits us all, whether we pursue further knowledge into the basic knowledge that underlines such processes or we seek to improve manufacturing processes," Barsukov added.

How black silicon, a prized material used in solar cells, gets its dark, rough edge, Rachel Kremen, Princeton Plasma Physics Laboratory

The Flood by Antonio Marziale Carracci

Topics: Civilization, Climate Change, Energy, Environment, Existentialism, Global Warming

Another week, another catastrophic, record-setting, history-making flood, this time in Kentucky.

Preliminary assessments indicate rainfall in Graves County last week likely set a new record for most precipitation in a 24-hour period, with 11.28 inches of rain. This would make it yet another “1,000-year” flood event, which had, according to historical projections, less than a 0.1 percent chance of occurring in any given year. One of the towns that experienced flash flooding was Mayfield, a community still rebuilding from a 2021 tornado that killed 57 people.

This was just one of the 11 flash flood emergencies in as many days in the United States, according to Weather Channel meteorologist Heather Zons. These events have claimed multiple lives: 2-year-old Mattie Shiels, 9-month-old brother, Conrad, and their mother, Katie Seley drowned after getting swept away by flash flooding in Pennsylvania, during an event that killed at least four others. In New York earlier this month, 43-year-old Pamela Nugent was swept away trying to evacuate a flooded area; 63-year-old Stephen Davoll drowned in his home in Vermont.

Other catastrophic, deadly flooding events have occurred almost simultaneously around the globe. Just this weekend, 10 inches of rain fell on parts of Nova Scotia, Canada, which is about as much as the region experiences over a period of three months. Four people, including two children, are still missing.

Everything, everywhere, all at once: The great floods of 2023, Jessica McKenzie, Bulletin of the Atomic Scientists, July 27, 2023

"What are the environmental impacts of cryptocurrency?" Written by Paul Kim; edited by Jasmine Suarez Mar 17, 2022, 5:21 PM EDT, Business Insider.

 Image: Ethereum, the second biggest cryptocurrency on the market, plans on changing to proof of stake mining in the future. Rachel Mendelson/Insider

Topics: Applied Physics, Computer Science, Cryptography, Economics, Environment, Star Trek, Thermodynamics

In what is now “old school Internet” (or web surfing for fogies), I will get a friend request from someone on Facebook/Meta who is in cryptocurrency. I quote myself in the first paragraph of what I refer to as my “public service announcement):

I am not INTERESTED in crypto. As someone who worked with cryptography as a matter of national security, holding a TS/SCI clearance, when you start your message with “let me explain to YOU how crypto works,” expect to get blocked.

Invariably, I still do, which makes me wonder if they read the PSA or think “they will be the one” to sign me. News flash, pilgrim...I now have another pertinent reason to ignore your blockchain solicitations, actually, several good reasons.

Every time we turn on a light in our homes, there is a thermal budget that we are being charged for (that's how Duke Power makes its money in North Carolina and Perdernales Electric Cooperative in Texas). Bitcoin/Blockchain (I think) caught the imagination because it seemed like a "Federation Credit" from Star Trek, where no one explains fully how a society that is "post-scarcity" somehow feels the need for some type of currency in utopia. It's kind of like magic carpets: you go with the bit for the story - warp drive, Heisenberg compensators, Federation credits. The story, and if you are thoroughly entertained after the denouement, not the physics, is what matters.

You might not be extracting anything from the planet directly, but Bitcoin mining has a massive impact on the planet’s environment.

Mining resources from our planet can take a devastating toll on the environment, both local and global. Even beyond this, using the resource could cause disastrous effects on our planet, and dependence on a single resource can wreak havoc on a country’s economy. Yet, many of these resources are needed for our daily lives -- sometimes as a luxury, sometimes as a necessity. Any responsible country or company should always take pause to consider what impact mining of any kind can have on the planet.

It turns out that these days, one type of mining might be the worst for Earth’s environment: bitcoins. Yes, the “mining” of virtual currency makes its mark on our planet. The unequal distribution of Bitcoin mining across the globe means that some countries are making a much larger dent into the planet’s climate and environment than others ... all for a “resource” that is far from necessary for our society.

Bitcoin mining uses a lot of computing power to solve the cryptographic puzzles that lie at the heart of the industry. As of today (October 30, 2023), each Bitcoin is worth over $34,000, and with the multitude of other cryptocoins out there, using computers to unlock more can be a profitable endeavor. Almost half a trillion dollars of the global economy runs on these “virtual currencies.”

Worst Kind of Mining for the Environment? It Might Be Bitcoin. Erik Klemetti, Discover Magazine

The sea floor near Australia’s Casey station in Antarctica has been found to have levels of pollution comparable to those in Rio de Janeiro’s harbor. Credit: Torsten Blackwood/AFP via Getty

Topics: Antarctica, Biology, Chemistry, Environment, Physics, Research

Antarctica is often described as one of the most pristine places in the world, but it has a dirty secret. Parts of the sea floor near Australia’s Casey research station are as polluted as the harbor in Rio de Janeiro, Brazil, according to a study published in PLoS ONE in August.

The contamination is likely to be widespread across Antarctica’s older research stations, says study co-author Jonathan Stark, a marine ecologist at the Australian Antarctic Division in Hobart. “These contaminants accumulate over long time frames and don’t just go away,” he says.

Stark and his colleagues found high concentrations of hydrocarbons — compounds found in fuels — and heavy metals, such as lead, copper, and zinc. Many of the samples were also loaded with polychlorinated biphenyls, highly carcinogenic chemical compounds that were common before their international ban in 2001.

When the researchers compared some of the samples with data from the World Harbor Project — an international collaboration that tracks large urban waterways — they found that lead, copper, and zinc levels in some cases were similar to those seen in parts of Sydney Harbour and Rio de Janeiro over the past two decades.

Widespread pollution

The problem of pollution is not unique to Casey station, says Ceisha Poirot, manager of policy, environment, and safety at Antarctica New Zealand in Christchurch. “All national programs are dealing with this issue,” she says. At New Zealand’s Scott Base — which is being redeveloped — contamination left from past fuel spills and poor waste management has been detected in soil and marine sediments. More of this historical pollution will emerge as the climate warms, says Poirot. “Things that were once frozen in the soil are now becoming more mobile,” she says.

Most of Antarctica’s contamination is due to historically poor waste management. In the old days, waste was often just dumped a small distance from research stations, says Terence Palmer, a marine scientist at Texas A&M University–Corpus Christi.

Research stations started to get serious about cleaning up their act in 1991. In that year, an international agreement known as the Protocol on Environmental Protection to the Antarctic Treaty, or the Madrid Protocol, was adopted. This designated Antarctica as a “natural reserve, devoted to peace and science,” and directed nations to monitor environmental impacts related to their activities. But much of the damage had already been done — roughly two-thirds of Antarctic research stations were built before 1991.

Antarctic research stations have polluted a pristine wilderness, Gemma Conroy, Nature.

The underground Onkalo repository in Finland is designed to safely and permanently store hazardous, radioactive waste. Credit: Posiva

Topics: Environment, High Energy Physics, Nuclear Power

Finland and the former Yugoslavia adopted nuclear energy only four years apart. In 1971 Finland began construction of its first nuclear plant, Loviisa, and the first of two planned reactors went into commercial operation in 1977. Yugoslavia started building the Krško plant in 1975. In the 1980s, both countries acknowledged the need for a long-term nuclear waste management strategy and started making plans for permanent disposal repositories.

Fast-forward four decades, and Finland is on the verge of becoming the world’s first country to achieve permanent deep geological disposal for spent nuclear fuel, the highly radioactive waste that contains uranium, plutonium, fission products, and other heavy elements. Meanwhile, the fate of the spent fuel generated at Krško, which is jointly owned by former Yugoslavian republics Croatia and Slovenia, is still very much unknown. Both countries have yet to get a handle on even low-level radioactive waste, including contaminated clothes and water filters, which is slowly overwhelming storage facilities and threatening to halt plant operations.

The US has long struggled to find a final resting place for its nuclear waste, to the point that it is now spending billions of dollars to reimburse plant operators for the costs of storing spent fuel. The dramatically different outcomes of Finland and Croatia’s lengthy searches for permanent nuclear waste solutions are reflections of the varied ways in which this long-standing worldwide problem is being tackled by the nations of the European Union. Whereas Finland, Sweden, and France are expected to open permanent underground spent-fuel repositories by the early 2030s, 12 other nuclear EU countries are far behind, planning to open deep geological disposal facilities sometime between the 2040s and the 2100s. According to a 2019 European Commission report on the implementation of its nuclear waste directive, only a few of those nations have made progress in selecting a site.

European Union nations grapple with nuclear waste storage, Vedrana Simičević, Physics Today.

This map predicts how air pollution with fine particles will be in the future - according to Ulas Im's computer simulation. The blue-colored areas show where the pollution is worst. Green is a little better, and yellow means almost no pollution. Credit: Journal for Environmental Research

Topics: Civilization, Environment, Existentialism

For many years now, we have known that air pollution is bad for our health. For example, American researchers have found that you have a 20% higher risk of dying prematurely if you live next to a big road.

In recent years, many countries—especially Western countries—have spent time and effort to come up with solutions to reduce air pollution. Particle filters and phasing out the use of the most polluting energy sources have helped. In Denmark, emissions of fine particles have been reduced by 48% since 1990.

But despite this progress, [even] more people will die prematurely from particulate air pollution in the future, according to model calculations performed by Ulas Im, Department of Environmental Science at Aarhus University, in collaboration with NASA.

The study is published in the journal Environmental Research.

[Together], Im and NASA have developed a global model for air pollution that includes climate change, particle emission reduction measures, and changes in population composition. The model depicts a bleak future, especially for the countries in Asia.

"Even if they reduce air pollution significantly in Asia, the mortality rate will still be high. This is because their populations are aging. And you become more vulnerable to pollution with age," Ulas Im says.

Extremely complicated calculations

Ulas Im from Aarhus University and NASA have come together in this project because both institutions have unique technology that—if combined—offers entirely new possibilities and perspectives.

The NASA Goddard Institute for Space Studies in New York has one of the most advanced climate models in the world, and Aarhus University has one of the best computer models for how air pollution affects human health.

By creating a hybrid of the two models and running the new model through Aarhus University's supercomputer, Ulas Im and his partners from NASA could create three scenarios for how air pollution will affect human health in the future.

"We fed the model with three different scenarios: one in which most of the world continues to regulate and try to limit air pollution; one in which we do even more than we do today; and finally, one in which we do less," he says.

But even in the most optimistic of the three scenarios, the result turned out to be bleak, especially for Asia.

"Although China has done much to reduce air pollution in recent decades, air pollution will have a dire impact in the future, even if they step up their efforts. This is because of their aging population. A greater share of the population will simply be more vulnerable," he says.

A Danish researcher and NASA predict how many people will die from air pollution in the future, Jeppe Kyhne Knudsen, Aarhus University, Phys.org.

The disinfectant powder is stirred in bacteria-contaminated water (upper left). The mixture is exposed to sunlight, which rapidly kills all the bacteria (upper right). A magnet collects the metallic powder after disinfection (lower right). The powder is then reloaded into another beaker of contaminated water, and the disinfection process is repeated (lower left). (Image credit: Tong Wu/Stanford University)

Topics: Biology, Chemistry, Environment, Materials Science, Nanotechnology

When exposed to sunlight, a low-cost, recyclable powder can kill thousands of waterborne bacteria per second. Stanford and SLAC scientists say the ultrafast disinfectant could be a revolutionary advance for 2 billion people worldwide without access to safe drinking water.

At least 2 billion people worldwide routinely drink water contaminated with disease-causing microbes.

Now, scientists at Stanford University and SLAC National Accelerator Laboratory have invented a low-cost, recyclable powder that kills thousands of waterborne bacteria per second when exposed to ordinary sunlight. According to the Stanford and SLAC team, the discovery of this ultrafast disinfectant could be a significant advance for nearly 30 percent of the world’s population with no access to safe drinking water. Their results are published in a May 18 study in Nature Water.

“Waterborne diseases are responsible for 2 million deaths annually, the majority in children under the age of 5,” said study co-lead author Tong Wu, a former postdoctoral scholar of materials science and engineering (MSE) at the Stanford School of Engineering. “We believe that our novel technology will facilitate revolutionary changes in water disinfection and inspire more innovations in this exciting interdisciplinary field.”

Conventional water-treatment technologies include chemicals, which can produce toxic byproducts, and ultraviolet light, which takes a relatively long time to disinfect and requires a source of electricity.

The new disinfectant developed at Stanford is a harmless metallic powder that works by absorbing both UV and high-energy visible light from the sun. The powder consists of nano-size flakes of aluminum oxide, molybdenum sulfide, copper, and iron oxide.

“We only used a tiny amount of these materials,” said senior author Yi Cui, the Fortinet Founders Professor of MSE and of Energy Science & Engineering in the Stanford Doerr School of Sustainability. “The materials are low cost and fairly abundant. The key innovation is that, when immersed in water, they all function together.”

New nontoxic powder uses sunlight to quickly disinfect contaminated drinking water, Mark Shwartz, Stanford News.

The LRESE parabolic dish: the solar reactor converts solar energy to hydrogen with an efficiency of more than 20%, producing around 0.5 kg of "green" hydrogen per day. (Courtesy: LRESE EPFL)

Topics: Applied Physics, Energy, Environment, Research, Solar Power

A new solar-radiation-concentrating device produces “green” hydrogen at a rate of more than 2 kilowatts while maintaining efficiencies above 20%. The pilot-scale device, which is already operational under real sunlight conditions, also produces usable heat and oxygen, and its developers at the École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland say it could be commercialized in the near future.

The new system sits on a concrete foundation on the EPFL campus and consists of a parabolic dish seven meters in diameter. This dish collects sunlight over a total area of 38.5 m2, concentrates it by a factor of about 1000, and directs it onto a reactor that comprises both photovoltaic and electrolysis components. Energy from the concentrated sunlight generates electron-hole pairs in the photovoltaic material, which the system then separates and transports to the integrated electrolysis system. Here, the energy is used to “split” water pumped through the system at an optimal rate, producing oxygen and hydrogen.

Putting it together at scale

Each of these processes has, of course, been demonstrated before. Indeed, the new EPFL system, which is described in Nature Energy, builds on previous research from 2019, when the EPFL team demonstrated the same concept at a laboratory scale using a high-flux solar simulator. However, the new reactor’s solar-to-hydrogen efficiency and hydrogen production rate of around 0.5 kg per day is unprecedented in large-scale devices. The reactor also produces usable heat at a temperature of 70°C.

The versatility of the new system forms a big part of its commercial appeal, says Sophia Haussener, who leads the EPFL’s Laboratory of Renewable Energy Science and Engineering (LRESE). “This co-generation system could be used in industrial applications such as metal processing and fertilizer manufacturing,” Haussener tells Physics World. “It could also be used to produce oxygen for use in hospitals and hydrogen for fuels cells in electric vehicles, as well as heat in residential settings for heating water. The hydrogen produced could also be converted to electricity after being stored between days or even inter-seasonally.”

Concentrated solar reactor generates unprecedented amounts of hydrogen, Isabelle Dumé, Physics World.

Graphical abstract. Credit: Nanomaterials (2023). DOI: 10.3390/nano13081404

Topics: Biology, Environment, Nanomaterials, Nanotechnology

Among the biggest environmental problems of our time, micro- and nanoplastic particles (MNPs) can enter the body in various ways, including through food. And now, for the first time, research conducted at MedUni Vienna has shown how these minute particles manage to breach the blood-brain barrier and, consequently, penetrate the brain. The newly discovered mechanism provides the basis for further research to protect humans and the environment.

Published in the journal Nanomaterials, the study was carried out in an animal model with oral administration of MNPs, in this case, polystyrene, a widely-used plastic found in food packaging. Led by Lukas Kenner (Department of Pathology at MedUni Vienna and Department of Laboratory Animal Pathology at Vetmeduni) and Oldamur Hollóczki (Department of Physical Chemistry, University of Debrecen, Hungary), the research team was able to determine that tiny polystyrene particles could be detected in the brain just two hours after ingestion.

The mechanism that enabled them to breach the blood-brain barrier was previously unknown to medical science. "With the help of computer models, we discovered that a certain surface structure (biomolecular corona) was crucial in enabling plastic particles to pass into the brain," Oldamur Hollóczki explained.

Study shows how tiny plastic particles manage to breach the blood-brain barrier, Medical University of Vienna, Phys.org

Credit: Pixabay/CC0 Public Domain

Topics: Chemistry, Computer Modeling, Environment, Materials Science

In an advance, they consider a breakthrough in computational chemistry research. University of Wisconsin–Madison chemical engineers have developed a model of how catalytic reactions work at the atomic scale. This understanding could allow engineers and chemists to develop more efficient catalysts and tune industrial processes—potentially with enormous energy savings, given that 90% of the products we encounter in our lives are produced, at least partially, via catalysis.

Catalyst materials accelerate chemical reactions without undergoing changes themselves. They are critical for refining petroleum products and for manufacturing pharmaceuticals, plastics, food additives, fertilizers, green fuels, industrial chemicals, and much more.

Scientists and engineers have spent decades fine-tuning catalytic reactions—yet because it's currently impossible to directly observe those reactions at the extreme temperatures and pressures often involved in industrial-scale catalysis, they haven't known exactly what is taking place on the nano and atomic scales. This new research helps unravel that mystery with potentially major ramifications for the industry.

In fact, just three catalytic reactions—steam-methane reforming to produce hydrogen, ammonia synthesis to produce fertilizer, and methanol synthesis—use close to 10% of the world's energy.

"If you decrease the temperatures at which you have to run these reactions by only a few degrees, there will be an enormous decrease in the energy demand that we face as humanity today," says Manos Mavrikakis, a professor of chemical and biological engineering at UW–Madison who led the research. "By decreasing the energy needed to run all these processes, you are also decreasing their environmental footprint."

New atomic-scale understanding of catalysis could unlock massive energy savings, Jason Daley, University of Madison-Wisconson

Topics: African Americans, Civics, Civil Rights, Civilization, Climate Change, Democracy, Diversity in Science, Environment, Existentialism, Fascism, Global Warming, Human Rights

Trauma at 55

© April 3, 2023, the Griot Poet

Graduation day.

No child smiling because we

Lost Martin Thursday.

April is National Poetry Month. This photo of five-year-old me inspired my haiku about my kindergarten graduation. It should have been a happy day with parents in the audience.

Dr. Martin Luther King Jr. was assassinated on Thursday, April 4, 1968. Our graduation was scheduled for Friday at Bethlehem Community Center in Winston-Salem, North Carolina.

All thirty-six students were blissfully unaware of the political earthquake that this was or that it had occurred. As we all aged, we probably learned of the death threats and the near assassination by a deranged woman at a book signing. We were unaware of the "Missiles of October" in 1962, barely scratching the planet's surface or taking our first steps before potential Armageddon. Medgar Evers was assassinated in Mississippi in June of 1963, and President John F. Kennedy was assassinated in November of the same year in Dallas when we were a little over a year old. Brother Malcolm was assassinated in February 1965 when we were almost three. I don't recall the University of Texas. Clock Tower shooting in 1966, but we were four then. My classmates, like me, probably heard a program on the local radio station, WAAA-AM, on Sundays from the Southern Christian Leadership Conference, "Martin Luther King Speaks." At that time, the caveat was that he spoke, addressing his audience directly over AM, the complete analog of today's social media. What are now tapes or YouTube videos for later generations: it was him, alive, breathing, and speaking. Martin, then Robert F. Kennedy, June 6, the president's brother running for president, fell that year.

I recall my mother kissing me profusely, promising to be there for the graduation, and saying "I love you" repeatedly. I had no doubts about that.

I also remember my father's eyes: red with bloodshot, dried tears on his cheeks. To that point in my brief existence, the thought of him crying was alien, foreign.

The kindergarten teachers sat us down. We assumed to prepare us for the costumes we would wear – white shorts, shirts, and bow ties for the boys, and skirts for the girls.

"Children, Dr. Martin Luther King was shot yesterday and died."

Stunned silence.

I am on the front row, the photo's first student on the left. The eighth student on that row is a girl who I recall having a crush on: she has her right knee pointing towards her left leg. She would break the silence before our ceremony with an ear-piercing screech, repetitive, inconsolable grief beyond her years, perhaps mimicked from a funeral. We all knew what "died" meant. In some form or fashion, by five, you have lost beloved pets or relatives that you never thought would leave the Earth.

The seed from her grief cascaded through the graduates like a malignant vine. The time was 9:00. We cried for two hours, during which someone with a pickup truck, a rebel flag flying, drove through the parking lot, yelling over and over so our young ears and teachers could hear him, "Martin Luther Coon's dead! Yahoo! The South will rise again!"

I lay on the linoleum, palm heels in my eye sockets, wailing my [own] notes. The teachers were crying with us, trying to console themselves and us, allowing us our grief. We went down for a nap at 11:00. Perhaps our teachers did too.

We went out for a brief recess, probably to clear the fog from our brains, but as I recall, we moved like zombies, with no one on the seesaw, children sitting, staring numbly on the swings, and no action on the monkey bars. Then we went in and got dressed.

Our parents would be there at 1:30 pm. I have described why not a single child graduating in the photo was smiling. Staring at my unsmiling, well, forced smiling parents, I remember this poignant thought post-grief beyond my brief years:

"We're not kids anymore!"

We would all start first grade in the fall without him.

I hugged my big sister tightly that evening, a student activist in the Civil Rights Movement attending Winston-Salem State University, because I knew, without a shadow of a doubt, what "died" meant.

*****

Devolution

(Post-Cold War and 9/11)

© April 4, 2023, the Griot Poet

I did duck-and-hide

Drills, kids as cold warriors:

Now, active shooter.

My employer hosted an Active Shooter/Stop the Bleeding training at my facility on probably the most insensitive date they could pick on the calendar: the 55^th anniversary of the assassination of Dr. King. As the first haiku eludes, time does not heal trauma. For the first half, both instructors had experience in law enforcement and the military. The second set of three instructors from a local trauma center featured a combat medic, who taught us through a cadaver dummy to stuff gauze from a "stop the bleeding kit" (there is a website to order directly).

I participated in the class vigorously to fight the "sugar crash" from the doughnuts offered.

We saw a lot of videos, one featuring the shooter in the Naval Shipyards gun massacre. The other was the bodycam video from the recent incident in Tennessee at a Christian School where three adults in their early sixties (around my same age) and three nine-year-old children were sacrificed on the altar of American Moloch. The original intent of particularly white evangelical Christian schools was to protect the "innocence" of their children from sitting next to someone like me. Somehow "thoughts and prayers" for a Christian school, no doubt inspired by Brown vs. Board of Education being actualized in the South, seemed oxymoronic.

"Duck-and-hide," or more accurately, duck-and-cover, where drills were part of civilian preparedness in the event World War Three spontaneously broke out. They gave us manuals we should read (I still have mine). The teachers and manual said that getting under the desk was the best way to survive the nuclear fallout if you were not the center of the blast radius. Preconscious and curious, my parents had bought the complete volumes of the Encyclopedia Britannica, the Internet of its day. Foreshadowing my eventual STEM majors in Engineering Physics, Microelectronics, and Nanoengineering, I read the "Nu" volume on nuclear weapons. I sadly concluded after my research that the drills were government-sanctioned gaslighting, a word I now use. The word I used then is a two-syllable word with the popular abbreviation "B.S." Plutonium 239, the ore of choice for thermonuclear weapons, has a half-life of 24,100 years, meaning that it would be half as radioactive in about 24 millennia. This drill wasn't to save lives but to reduce panicked stampeding that, I admit, would help no one. The official nuclear doctrine of deterrence is M.A.D.: mutually assured destruction. We'll see if Russia in Ukraine remembers this at all.

The United States has been in some war 93% of the time from 1775 (before its existence) to 2018. This factum is according to Smithsonian Magazine. The article's caveat is how to interpret "war": declared congressionally, unilaterally by the executive, or (in my opinion) upon one's citizens.

I will attend my precocious granddaughter's fourth birthday party this National Poetry Month. She is one year younger than my five-year-old image. After getting her a "Dr. McStuffin's Medical Kit" for Christmas, she immediately assigned herself as her grandparents' doctor. She even does televisits when we chat on Google Hangout.

Yet she grows up in a world of the continuous threat of Armageddon. Add to that designed scarcity, economic Disaster Capitalism cum neoliberalism, rising global temperatures, and active shooter training when she starts kindergarten in the fall, minus the "stop the bleeding kits," even with her Dr. McStuffin credentials. Because of the malaise of government and gun lobbyists, we've reduced her citizenry to becoming a combat medic in the future, whether she wants to or not.

I bought a "stop the bleeding" kit. It should be here before Easter.

"We're not kids anymore!"

None of us are.