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Posts by David Kirchman

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US has caused $10tn worth of climate damage since 1990, research finds US, top carbon emitter in history, has ‘a lot of responsibility’ for causing ‘substantial’ harm globally, scientist says

"By being the largest carbon emitter in history, the US has caused greater harm to worldwide economic growth than any other country, ahead of China, now the world’s largest emitter that is responsible for $9tn in GDP damage since 1990."

www.theguardian.com/environment/...

3 weeks ago 0 0 0 0
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Suddenly, the US manufactures a ton of grid batteries Energy storage is surging on the U.S. grid — and now the country has more than enough battery-making factories to meet that booming demand.

Because of AI power demands "batteries will account for some 28% of new U.S. power plant capacity built this year. For the first time, the country will be able to produce enough grid batteries to meet that surging demand on its own,"

www.canarymedia.com/articles/cle...

4 weeks ago 0 0 0 0
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Revealed: the world’s worst mega-leaks of methane driving global heating Exclusive: Fixing a leak can be simple and equivalent to closing a coal power station, making lack of action maddening, say analysts

"the top 25 list..is dominated by facilities in Turkmenistan...Super-polluting plumes were also seen in the US, the largest detected in 2025 occurring in Texas.. Venezuela (five) and Iran (three) also had multiple mega-leaks.

www.theguardian.com/environment/...

1 month ago 1 4 0 0
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Prompting large language models for quality ecological statistics | R-bloggers Like it or not, everyone is using large languageden models to help do their statistics. There’s a lot of claims made about whether LLMs can or can’t do useful ecological statistics. In our new paper “...

This blog post is about how to use large language models (i.e. AI) in analyzing ecological data. The bottom line: "LLMs can help you do better statistics, but only if you ask well. And “asking well” is a learnable skill."

www.r-bloggers.com/2026/03/prom...

1 month ago 1 0 0 0
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How sewage treatment plants could handle food waste, sparing landfills and the climate Rather than generating climate-warming emissions and wasting nutrients and energy, food waste can become a resource if processed in sewage treatment plants.

"a conventional wastewater treatment plant... captures over 95% of methane, compared to roughly 50% at landfills, saving the atmosphere from additional greenhouse gases.

theconversation.com/how-sewage-t...

1 month ago 1 0 0 0
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Bacteria Decide the Ocean’s Dissolved Organic Carbon Abundance - Eos Dissolved organic carbon prevalence follows from how many bacteria are around to eat it, modeling suggests.

Owusu et al. say that either top-down control (e.g. grazing) or nutrient limitation (e.g. N) shape bacterial communities which in turn set DOC levels in the oceans. The EOS piece by @saimamay.bsky.social is a good summary.

eos.org/research-spo...
@saimamay.bsky.social

1 month ago 2 1 0 0
PNAS Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...

"..this study provides strong evidence that microbial sources, such as those from wetlands, agriculture, and waste, are primarily responsible for the post-2006 methane rise.." but the microbes are being stimulated by global warming.

www.pnas.org/doi/10.1073/...

4 months ago 0 0 0 0
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Book review – Air-Borne: The Hidden History of the Life We Breathe A real-world thriller of hubris, pandemics, and biological weapons, Air-Borne brilliantly tells the complex and multifaceted history of aerobiology.

"Air-Borne reads like a real-world thriller, filled with human ingenuity, persistence, hubris, and arrogance; with pandemics and biological weapons; and, so it seems, with every bad decision under the sun." @carlzimmer.com

inquisitivebiologist.com/2025/07/23/b...

8 months ago 19 10 0 0
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Book review – Is a River Alive? Is a River Alive? is a hydrological odyssey into three river systems that sees Macfarlane wrestle with this question and examine its relevance to the nascent Rights of Nature movement.

This review by the Inquisitive Biologist almost convinced me to get Macfarlene's latest (loved his last book, Underland).

inquisitivebiologist.com/2025/07/04/b...

9 months ago 0 0 0 0

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9 months ago 12 5 0 0
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Plastic bag fees and bans help protect beaches and riverbanks, study finds But even places with bag policies are seeing a greater prevalence of plastic bags on beaches and riverbanks.

Bans on plastic bags like in Delaware work. This WaPo article is based on a report just published in Science by Delaware's Kimberly Oremus.

@kimberlyoremus.bsky.social
@washingtonpost.com, @allysonchiu.bsky.social

www.washingtonpost.com/climate-solu...

9 months ago 0 0 0 0
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Book review – Super Natural: How Life Thrives in Impossible Places An entertaining romp through life’s outliers, Super Natural explores the extreme conditions under which some organisms not only survive, but often thrive.

Another useful review by the Inquisitive Biologist about an interesting book.

inquisitivebiologist.com/2025/06/18/b...

10 months ago 0 0 0 0
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A drop in the ocean: does experimental technology hold the key to saving the world’s seas? Investment is pouring into companies promising to geoengineer a rapid change in the pH of our waters – but critics are concerned at the speed at which unproven methods are being adopted

"Ebb plans to use a method called electrochemical ocean alkalinity enhancement (OAE) to mimic the natural process of ocean alkalisation – in other words, it wants to add huge amounts of alkaline materials to ocean waters..." @climatenews.bsky.social

www.theguardian.com/environment/...

10 months ago 0 0 0 0
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‘Ticking timebomb’: sea acidity has reached critical levels, threatening entire ecosystems – study Ocean acidification has already crossed a crucial threshold for planetary health, scientists say in unexpected finding

Ocean acidification’s “planetary boundary” was crossed about five years ago. @climatenews.bsky.social

www.theguardian.com/environment/...

10 months ago 1 0 0 0
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Analysis: Clean energy just put China’s CO2 emissions into reverse for first time - Carbon Brief For the first time, the growth in China’s clean power generation has caused the nation’s carbon dioxide (CO2) emissions to fall despite rapid power demand growth.

Carbon Brief also reports that EV sales in emerging markets in Asia and Latin America in 2024 rose by 60%

@carbonbrief.org

www.carbonbrief.org/analysis-cle...

11 months ago 0 0 0 0
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Car use and meat consumption drive emissions gender gap, research suggests The French study of 15,000 people shows men emit 26% more pollution due to eating red meat and driving more

"Previous research from Sweden has found men’s spending on goods causes 16% more climate-heating emissions than women’s."

@us.theguardian.com

www.theguardian.com/environment/...

11 months ago 0 0 0 0
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Chart: In a first, clean power beat fossil fuels on US grid last month Sunnier, windier days helped propel clean sources past gas and coal in March. It’s a milestone for the U.S. energy transition.

"Sunnier, windier days helped propel clean sources past gas and coal in March. " Probably won't last but enjoy the good news for a bit.

www.canarymedia.com/articles/cle...

1 year ago 0 0 0 0
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US honeybee deaths hit record high as scientists scramble to find main cause US Department of Agriculture calls in university to help study decline as Trump administration staff cuts sting

"For managed honeybees, a lack of nutrition, poor handling practices and rampant infestation by varroa mites, a type of parasite, and diseases have also taken their toll."

www.theguardian.com/us-news/2025...

1 year ago 0 0 0 0
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Book review – Selfish Genes to Social Beings: A Cooperative History of Life Selfish Genes to Social Beings relies on a potent combination of human-interest stories, wit, and ingenious metaphors to convince you that cooperation is an important component driving evolution.

"Two conditions are required for cooperation to evolve. First, the benefits to the individuals involved have to outweigh the costs.... Second, there has to be a way for cheaters to be detected and excluded.."

@oxfordunipress.bsky.social

inquisitivebiologist.com/2025/03/23/b...

1 year ago 0 0 0 0
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Three years into the Ukraine war, is Europe’s energy system cleaner? In response to the invasion, Europe mostly ditched Russian fossil fuels and built a cleaner grid. But wholesale decarbonization has proven elusive.

Not all good news, but "..renewables generate 47% of the EU’s electricity in 2024. Coupled with the continent’s nuclear plants... carbon-free generators made 71% of Europe’s electricity last year, while fossil fuels produced 29%."
@canarymedia.com

www.canarymedia.com/articles/cle...

1 year ago 0 0 0 0
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Seeing Red And...what do Abe Lincoln and walleye fishing have in common?

This absorbing essay combines history, geology, politics and current environmental science to explore the nutrient pollution carried by the Red River from several US states to Lake Winnipeg and eventually the Arctic.

@theswinerepublic.bsky.social

Seeing Red open.substack.com/pub/riverrac...

1 year ago 5 4 0 0
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Global sea level rose higher than expected last year. Here’s why. The rate of global sea level rise follows a trend of rapidly increasing rates over the past 30 years.

"An unprecedented streak of ocean heat since 2023 led some scientists to think that this part of Earth’s system has fundamentally changed in a way that it cannot be reversed on a human timescale."

@washingtonpost.com @kashapatel.bsky.social

www.washingtonpost.com/climate-envi...

1 year ago 0 0 0 0
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How microplastics could be affecting our food supply It’s a new sign of how the tiny plastic particles are affecting the natural world.

Recent PNAS study concluded that microplastics are causing "a reduction in photosynthesis of 7 to 12 percent worldwide in plants and algae." As if there weren't enough reasons to reduce especially single-use plastic.

@shannonosaka.bsky.social

www.washingtonpost.com/climate-envi...

1 year ago 0 0 0 0
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How to eat and drink fewer microplastics Scientists are finding microplastics throughout the human body. Here are some simple strategies to reduce your exposure.

First on the list for avoiding microplastics: drink tap water, not bottled water. "Researchers have found that an average liter of bottled water contains about 240,000 plastic particles.." #plastic @washingtonpost.com

www.washingtonpost.com/climate-solu...

1 year ago 2 0 0 0
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Ancient Greeks and Romans Laced the Aegean with Lead - Eos Lead pollution in and around the Aegean Sea dates back to the Bronze Age and shows a strong spike associated with Roman expansion.

"The new data revealed a striking spike in marine lead pollution about 2,150 years ago. That’s around the time when... what is now Greece [was] being incorporated into the Roman Republic.." #lead #pollution @eos.org @elisecutts.bsky.social

eos.org/articles/anc...

1 year ago 2 0 0 0
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Column | Are GMOs bad for your health? Here’s what the science says. There’s nothing inherently unsafe about genetically modified foods. It’s the potential herbicide exposure that should give you pause.

"GMOs are likely fine for adults to consume, especially if you minimize ultra-processed foods... For pregnant women and young children, it would be very reasonable to minimize consuming GMOs and ultra-processed foods whenever possible." @washingtonpost.com

www.washingtonpost.com/wellness/202...

1 year ago 1 0 0 0
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Plants losing appetite for carbon dioxide amid effects of warming climate Earth’s plants and soils reached peak carbon dioxide sequestration in 2008 but proportion absorbed has been declining since, study finds

If not for plants, atmospheric carbon dioxide would be about 30% higher, so any reduction in their carbon consumption is really bad news for the climate. We'll see if this finding is confirmed by others. @theguardian.com

www.theguardian.com/science/2025...

1 year ago 1 1 0 0
This is figure 1, which shows global glacier mass changes from 2000 to 2023.

This is figure 1, which shows global glacier mass changes from 2000 to 2023.

A study in Nature finds that, since 2000, glaciers have lost between 2% and 39% of their ice regionally and about 5% globally. https://go.nature.com/3Qz4Tj7 🧪

1 year ago 38 18 0 2
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Opinion | After 10,000 years, let’s bury the plow No-till farming reduces need for fertilizers and pesticides, and promotes soil health and biodiversity.

A great piece about (mostly) new agricultural practices that not only save farmers money but help save the planet.

@danamilbank.bsky.social

www.washingtonpost.com/opinions/202...

1 year ago 0 0 0 0