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Category: Environment

Did a mega drought topple empires 4,200 years ago?

Did a mega drought topple empires 4,200 years ago?

Nature reports: The missing earthworms were a sign. As archaeologist Harvey Weiss and his colleagues excavated a site in northeast Syria, they found a buried layer of wind-blown silt so barren there was hardly any evidence of earthworms at work during that ancient era. Something drastic had happened thousands of years ago — something that choked the land with dust for decades, leaving a blanket of soil too inhospitable even for earthworms. The drought hit in roughly 2200 BC, when the…

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Scientists find hints of a hidden mass extinction 30 million years ago

Scientists find hints of a hidden mass extinction 30 million years ago

Inside Science reports: Nearly two-thirds of mammal species in Africa and the Arabian Peninsula may have died off about 30 million years ago, a mass extinction that escaped detection for decades until now, a new study finds. During a time span known as the Eocene-Oligocene transition between 40 million and 34 million years ago, Earth’s climate shifted dramatically, with the planet growing cooler, ice sheets expanding and sea levels dropping worldwide. During the Eocene, Antarctica was covered by lush forests,…

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How long can humans survive?

How long can humans survive?

Tom Chivers writes: In the deep ocean, occasionally, a whale carcass falls to the bottom of the sea. Most of the time, in the state of nature, creatures have just about enough to survive. But the first creatures to find the whale have more food than they could ever eat. These scavengers live lives of extraordinary plenty — some of the smaller, faster-breeding species might do so for several generations. There is enough to go around a thousand times over….

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Waste is central, not peripheral, to everything we design, make and do

Waste is central, not peripheral, to everything we design, make and do

Justin McGuirk writes: The opposition between ‘nature’ and ‘culture’ is problematic for many reasons, but there’s one that we rarely discuss. The ‘nature vs culture’ dualism leaves out an entire domain that properly belongs to neither: the world of waste. The mountains of waste that we produce every year, the torrents of polluting effluent, the billions of tonnes of greenhouse gases, the new cosmos of microplastics expanding through our oceans – none of this has ever been entered into the…

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After the wars in Iraq, ‘everything living is dying’

After the wars in Iraq, ‘everything living is dying’

Lynzy Billing reports: As far back as 2005, the United Nations had estimated that Iraq was already littered with several thousand contaminated sites. Five years later, an investigation by The Times, a London-based newspaper, suggested that the U.S. military had generated some 11 million pounds of toxic waste and abandoned it in Iraq. Today, the country remains awash in hazardous materials, such as depleted uranium and dioxin, which have polluted the soil and water. And extractive industries like the KAR…

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New data suggests a massive collapse of Antarctic’s Thwaites Glacier in as little as five years

New data suggests a massive collapse of Antarctic’s Thwaites Glacier in as little as five years

Jeff Goodell reports: One thing that’s hard to grasp about the climate crisis is that big changes can happen fast. In 2019, I was aboard the Nathaniel B. Palmer, a 308-foot-long scientific research vessel, cruising in front of the Thwaites Glacier in Antarctica. One day, we were sailing in clear seas in front of the glacier. The next day, we were surrounded by icebergs the size of aircraft carriers. As we later learned from satellite images, in a matter of…

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Coal in America: A legacy of environmental catastrophe

Coal in America: A legacy of environmental catastrophe

James Bruggers writes: Along the winding, two lane road that leads to Tracy Neece’s mountain in Floyd County, Kentucky, there’s no hint of the huge scars in the hills beyond the oaks and the pines. Green forests cover steep slopes on each side of the road, which turns from blacktop to dusty gravel. Modest homes are nestled into the bottomlands along a creek with gardens that grow corn and zucchini under a hot summer sun. The first sign of the…

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A relentless assault on the Amazon rainforest poses a threat to the planet

A relentless assault on the Amazon rainforest poses a threat to the planet

Georgina Gustin writes: The Amazon is enveloping and lush, a place of stupefying richness. But a powerful web of extractive forces is also at work here. Every day, thousands of miners, loggers, farmers and ranchers burn or cut roughly 10,000 acres of forest, working to satisfy a growing demand for the resources it contains. They are tiny cogs in a sprawling global machine that has destroyed nearly one-fifth of the Brazilian rainforest—an area about the size of California—over the last…

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2021 Arctic Report Card reveals a (human) story of cascading disruptions, extreme events and global connections

2021 Arctic Report Card reveals a (human) story of cascading disruptions, extreme events and global connections

Community members from Utqiagvik, Alaska, look to open water from the edge of shorefast sea ice. Matthew Druckenmiller By Matthew Druckenmiller, University of Colorado Boulder; Rick Thoman, University of Alaska Fairbanks, and Twila Moon, University of Colorado Boulder The Arctic has long been portrayed as a distant end-of-the-Earth place, disconnected from everyday common experience. But as the planet rapidly warms, what happens in this icy region, where temperatures are rising twice as fast as the rest of the globe, increasingly…

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How border walls are triggering ecological disaster

How border walls are triggering ecological disaster

George Monbiot writes: This is the century in which humanitarian and environmental disasters converge. Climate breakdown has driven many millions from their homes, and is likely to evict hundreds of millions more. The famine harrowing Madagascar at the moment is the first to have been named by the UN as likely to have been caused by the climate emergency. It will not be the last. Great cities find themselves dangerously short of water as aquifers are drained. Air pollution kills…

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Antarctica’s Thwaites Glacier ice shelf could collapse within five years

Antarctica’s Thwaites Glacier ice shelf could collapse within five years

Science News reports: The demise of a West Antarctic glacier poses the world’s biggest threat to raise sea levels before 2100 — and an ice shelf that’s holding it back from the sea could collapse within three to five years, scientists reported December 13 at the American Geophysical Union’s fall meeting in New Orleans. Thwaites Glacier is “one of the largest, highest glaciers in Antarctica — it’s huge,” Ted Scambos, a glaciologist at the Boulder, Colo.–based Cooperative Institute for Research…

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The threats to mountain ecosystems

The threats to mountain ecosystems

Mountain ecosystems are threatened by: 🚜Expansion of agriculture & settlements upslope🌳Logging for timber & fuel⛰️Replacement of alpine systems by highland pastures🌱#InvasiveSpecies💦#ClimateChange —@IPBES #GlobalAssessment#InternationalMountainDay pic.twitter.com/bqLcVFpJNq — ipbes (@IPBES) December 8, 2021

A billion shellfish and other marine animals baked to death

A billion shellfish and other marine animals baked to death

Julia Rosen writes: During this summer’s stifling heat wave, Robin Fales patrolled the same sweep of shore on Washington’s San Juan Island every day at low tide. The stench of rotting sea life grew as temperatures edged toward triple digits—roughly 30 degrees above average—and Fales watched the beds of kelp she studies wilt and fade. “They were bleaching more than I had ever seen,” recalls Fales, a Ph.D. candidate and marine ecologist at the University of Washington. She didn’t know…

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How one society rebounded from ‘the worst year to be alive’

How one society rebounded from ‘the worst year to be alive’

Michael Price writes: It was the worst time to be alive, according to some scientists. From 536 C.E. to 541 C.E., a series of volcanic eruptions in North and Central America sent tons of ash into the atmosphere, blocking sunlight, chilling the globe, and destroying crops worldwide. Societies everywhere struggled to survive. But for the Ancestral Pueblo people living in what today is the U.S. Southwest, this climate catastrophe planted the seeds for a more cohesive, technologically sophisticated society, a…

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Nurdles — the worst toxic waste you’ve probably never heard of

Nurdles — the worst toxic waste you’ve probably never heard of

The Guardian reports: When the X-Press Pearl container ship caught fire and sank in the Indian Ocean in May, Sri Lanka was terrified that the vessel’s 350 tonnes of heavy fuel oil would spill into the ocean, causing an environmental disaster for the country’s pristine coral reefs and fishing industry. Classified by the UN as Sri Lanka’s “worst maritime disaster”, the biggest impact was not caused by the heavy fuel oil. Nor was it the hazardous chemicals on board, which…

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