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Category: Climate Change

The race to produce green steel

The race to produce green steel

May 11, 2022 by Marcello Rossi In the city of Woburn, Massachusetts, a suburb just north of Boston, a cadre of engineers and scientists in white coats inspected an orderly stack of brick-sized, gunmetal-gray steel ingots on a desk inside a neon-illuminated lab space. What they were looking at was a batch of steel created using an innovative manufacturing method, one that Boston Metal, a company that spun out a decade ago from MIT, hopes will dramatically reshape the way…

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Climate limit of 1.5C close to being broken, scientists warn

Climate limit of 1.5C close to being broken, scientists warn

The Guardian reports: The year the world breaches for the first time the 1.5C global heating limit set by international governments is fast approaching, a new forecast shows. The probability of one of the next five years surpassing the limit is now 50%, scientists led by the UK Met Office found. As recently as 2015, there was zero chance of this happening in the following five years. But this surged to 20% in 2020 and 40% in 2021. The global…

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How much does eating meat affect nations’ greenhouse gas emissions?

How much does eating meat affect nations’ greenhouse gas emissions?

Science News reports: The food we eat is responsible for an astounding one-third of global greenhouse gas emissions caused by human activities, according to two comprehensive studies published in 2021. “When people talk about food systems, they always think about the cow in the field,” says statistician Francesco Tubiello, lead author of one of the reports, appearing in last June’s Environmental Research Letters. True, cows are a major source of methane, which, like other greenhouse gases, traps heat in the…

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An attack on Ukraine and climate change cooperation

An attack on Ukraine and climate change cooperation

Genevieve Kotarska and Lauren Young write: Since Russia’s invasion of Ukraine on 24 February 2022, energy security has been a central feature of public discourse. As Russia is one of the world’s largest suppliers of oil and gas, the energy market has become a crucial factor as the humanitarian and environmental crisis unfolds. With many countries dependent on Russia for energy supplies, the international community is now in a position where its ability to respond forcefully to the invasion is…

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The climate movement in its own way

The climate movement in its own way

Charles Komanoff writes: After decades of critically documenting nuclear power’s outsize costs, I finally admitted to myself that the carbon-reduction benefits from continuing to run US nuclear plants are substantial, and in some respects irreplaceable. I made the case for keeping them open in an April article on TheNation.com. Closing New York’s Indian Point reactors last year was a climate blunder, I wrote. Not just because fracked gas is now filling the breach, but because the need to replace the…

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‘We are living in hell’: Pakistan and India suffer extreme spring heatwaves

‘We are living in hell’: Pakistan and India suffer extreme spring heatwaves

The Guardian reports: For the past few weeks, Nazeer Ahmed has been living in one of the hottest places on Earth. As a brutal heatwave has swept across India and Pakistan, his home in Turbat, in Pakistan’s Balochistan region, has been suffering through weeks of temperatures that have repeatedly hit almost 50C (122F), unprecedented for this time of year. Locals have been driven into their homes, unable to work except during the cooler night hours, and are facing critical shortages…

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A climate-driven decline of tiny dryland lichens could have major global impacts

A climate-driven decline of tiny dryland lichens could have major global impacts

Inside Climate News reports: Lichens that help hold together soil crusts in arid lands around the world are dying off as the climate warms, new research shows. That would lead deserts to expand and also would affect areas far from the drylands, as crumbling crusts fill winds with dust that can speed snowmelt and increase the incidence of respiratory diseases. Biologically rich soil crusts, sometimes called cryptobiotic soils or biocrusts, are spread out across dry and semi-dry regions of every…

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Getting real on climate means facing necessity

Getting real on climate means facing necessity

Bill McKibben writes: “Realism” is the high ground in politics—a high ground from which to rain down artillery fire on new ideas. To wit, this week the New York Times profiled Canadian energy analyst Vaclav Smil, who—alongside others like Daniel Yergin—has long insisted that the transformation from fossil fuels to hydrocarbons must take a long time. Smil is a good writer and a smart historian; he’s documented the many-decades-long transitions from, say, wood to coal, and coal to oil as…

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How climate change impacts pandemics

How climate change impacts pandemics

Ed Yong writes: For the world’s viruses, this is a time of unprecedented opportunity. An estimated 40,000 viruses lurk in the bodies of mammals, of which a quarter could conceivably infect humans. Most do not, because they have few chances to leap into our bodies. But those chances are growing. Earth’s changing climate is forcing animals to relocate to new habitats, in a bid to track their preferred environmental conditions. Species that have never coexisted will become neighbors, creating thousands…

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Why you should care about the insect crisis

Why you should care about the insect crisis

Allie Wilkinson writes: Imagine a world without insects. You might breathe a sigh of relief at the thought of mosquito-free summers, or you might worry about how agriculture will function without pollinators. What you probably won’t picture is trudging through a landscape littered with feces and rotting corpses — what a world devoid of maggots and dung beetles would look like. That’s just a snippet of the horrifying picture of an insect-free future that journalist Oliver Milman paints in the…

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Twitter bans ‘misleading’ ads about climate change

Twitter bans ‘misleading’ ads about climate change

The Verge reports: Twitter levied a new ban today on “misleading” advertisements “that contradict the scientific consensus on climate change.” “We believe that climate denialism shouldn’t be monetized on Twitter, and that misrepresentative ads shouldn’t detract from important conversations about the climate crisis,” the company said in a blog post today. Its decisions about what’s legit content in regard to climate change will be guided by “authoritative sources,” it says, including the United Nations Intergovernmental Panel on Climate Change (IPCC)….

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‘What we now know … they lied’: How big oil companies betrayed us all

‘What we now know … they lied’: How big oil companies betrayed us all

The Guardian reports: There is a moment in the revelatory PBS Frontline docuseries The Power of Big Oil, about the industry’s long campaign to stall action on the climate crisis, in which the former Republican senator Chuck Hagel reflects on his part in killing US ratification of the Kyoto climate treaty. In 1997, Hagel joined with the Democratic senator Robert Byrd to promote a resolution opposing the international agreement to limit greenhouse gases, on the grounds that it was unfair…

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Fewer Americans see climate change as a priority than they did a year ago, CBS News poll

Fewer Americans see climate change as a priority than they did a year ago, CBS News poll

CBS News reports: With issues like the economy and inflation, crime, and the war in Ukraine weighing most on Americans’ minds, the percentage who think climate change needs to be addressed right now has dipped some since one year ago. This dip in urgency, while not steep, is widespread. Fewer people across age, race, and education groups, as well as partisan stripes, think climate change needs to be addressed right away than thought so a year ago. Still, most Americans…

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The renewable energy revolution will need renewable storage

The renewable energy revolution will need renewable storage

Matthew Hutson writes: The German word Dunkelflaute means “dark doldrums.” It chills the hearts of renewable-energy engineers, who use it to refer to the lulls when solar panels and wind turbines are thwarted by clouds, night, or still air. On a bright, cloudless day, a solar farm can generate prodigious amounts of electricity; when it’s gusty, wind turbines whoosh neighborhoods to life. But at night solar cells do little, and in calm air turbines sit useless. These renewable energy sources…

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Seed banks — the last line of defense against a global food crisis

Seed banks — the last line of defense against a global food crisis

The Guardian reports: As the risks from the climate crisis and global conflict increase, seed banks are increasingly considered a priceless resource that could one day prevent a worldwide food crisis. Two in five of the world’s plant species are at risk of extinction, and though researchers estimate there are at least 200,000 edible plant species on our planet, we depend on just three – maize, rice and wheat– for more than half of humanity’s caloric intake. There are roughly…

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Energy requirements of a good life are surprisingly low

Energy requirements of a good life are surprisingly low

Anthropocene magazine reports: The average global energy consumption—79 gigajoules per person per year—is sufficient to power a healthy, comfortable life for everyone on the planet, according to a new study. The analysis is part of a growing body of research aimed at figuring out how to achieve climate goals while also providing modern energy resources to those who lack it. The findings suggest that this balance might be easier than expected to strike: the world doesn’t need a massive expansion…

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