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Past evidence supports complete loss of Arctic sea-ice by 2035

Iceberg in Greenland (stock image). Credit: © mikhail79spb / stock.adobe.com A new study, published this week in the journal Nature Climate Change, supports predictions that the Arctic could be free of sea ice by 2035. High temperatures in the Arctic during the last interglacial -- the warm period around 127,000 years ago -- have puzzled…

‘Extremely active’ hurricane season possible for Atlantic Basin

Palm trees in high winds (stock image). Credit: © Lisa / stock.adobe.com Atmospheric and oceanic conditions are primed to fuel storm development in the Atlantic, leading to what could be an "extremely active" season, according to forecasters with NOAA's Climate Prediction Center, a division of the National Weather Service. Today, the agency released its annual…

Global methane emissions soar to record high

Gas burning (stock image). Credit: © Leonid Ikan / stock.adobe.com Global emissions of methane have reached the highest levels on record. Increases are being driven primarily by growth of emissions from coal mining, oil and natural gas production, cattle and sheep ranching, and landfills. Between 2000 and 2017, levels of the potent greenhouse gas barreled…

Beavers gnawing away at the permafrost

Beaver (stock image). Credit: © Jillian / stock.adobe.com Alaska's beavers are profiting from climate change, and spreading rapidly. In just a few years' time, they have not only expanded into many tundra regions where they'd never been seen before; they're also building more and more dams in their new homes, creating a host of new…

Extreme warming of the South Pole

Illustration of Earth centered on Antarctica (stock image). Credit: © conceptcafe / stock.adobe.com The South Pole has been warming at more than three times the global average over the past 30 years, according to research led by Ohio University professor Ryan Fogt and OHIO alumnus Kyle Clem. Fogt, professor of meteorology and director of the…

Tropical forests can handle the heat, up to a point

Borneo forest (stock image). Credit: © feathercollector / stock.adobe.com Tropical forests face an uncertain future under climate change, but new research published in Science suggests they can continue to store large amounts of carbon in a warmer world, if countries limit greenhouse gas emissions. The world's tropical forests store a quarter-century worth of fossil fuel…

Bumblebees speed up flowering

Bumblebee on flower (stock image). Credit: © Heather Jane / stock.adobe.com Spring has sprung earlier than ever before this year, accompanied by temperatures more typical of early summertime. Many plants were already in full bloom by mid-April, about three to four weeks earlier than normal. These types of seasonal anomalies are becoming increasingly frequent due…

COVID-19 crisis causes 17 percent drop in global carbon emissions

Coronavirus and world concept illustration (stock image). Credit: © Photocreo Bednarek / stock.adobe.com The COVID-19 global lockdown has had an "extreme" effect on daily carbon emissions, but it is unlikely to last -- according to a new analysis by an international team of scientists. The study published in the journal Nature Climate Change shows that…

Long-term data show hurricanes are getting stronger

Illustration of hurricane seen from space (stock image; elements furnished by NASA). Credit: © Mike Mareen / stock.adobe.com In almost every region of the world where hurricanes form, their maximum sustained winds are getting stronger. That is according to a new study by scientists at the National Oceanic and Atmospheric Administration National Center for Environmental…

Potentially fatal combinations of humidity and heat are emerging across the...

High temperature on thermometer (stock image). Credit: © nnudoo / Adobe Stock Most everyone knows that humid heat is harder to handle than the "dry" kind. And recently, some scientists have projected that later in the century, in parts of the tropics and subtropics, warming climate could cause combined heat and humidity to reach levels…

NASA space laser missions map 16 years of ice sheet loss

Icebergs off Greenland (stock image). Credit: © Friederike / Adobe Stock Using the most advanced Earth-observing laser instrument NASA has ever flown in space, scientists have made precise, detailed measurements of how the elevation of the Greenland and Antarctic ice sheets have changed over 16 years. The results provide insights into how the polar ice…

Rising carbon dioxide causes more than a climate crisis — it...

Carbon dioxide in air concept illustration (stock image). Credit: © frenta / Adobe Stock As the 21st century progresses, rising atmospheric carbon dioxide (CO2) concentrations will cause urban and indoor levels of the gas to increase, and that may significantly reduce our basic decision-making ability and complex strategic thinking, according to a new CU Boulder-led…

Changes in snowmelt threaten farmers in western US

Field being irrigated (stock image). Credit: © TheFotos / Adobe Stock Farmers in parts of the western United States who rely on snowmelt to help irrigate their crops will be among the hardest hit in the world by climate change, a new study reveals. In an article published today in Nature Climate Change, an interdisciplinary…

Climate-driven megadrought is emerging in western US, says study

Cracked earth, drought concept (stock image). Credit: © Alison Toon / Adobe Stock With the western United States and northern Mexico suffering an ever-lengthening string of dry years starting in 2000, scientists have been warning for some time that climate change may be pushing the region toward an extreme long-term drought worse than any in…

Heavy iron isotopes leaking from Earth’s core

Earth core structure (stock image; elements furnished by NASA). Credit: © Vadimsadovski / Adobe Stock Earth's molten core may be leaking iron, according to researchers who analyzed how iron behaves inside our planet. The boundary between the liquid iron core and the rocky mantle is located some 1,800 miles (2,900 km) below Earth's surface. At…

Volcanic carbon dioxide emissions helped trigger Triassic climate change

Volcanic eruption (stock image). Credit: © Fotos 593 / Adobe Stock A new study finds volcanic activity played a direct role in triggering extreme climate change at the end of the Triassic period 201 million year ago, wiping out almost half of all existing species. The amount of carbon dioxide released into the atmosphere from…

East Antarctica’s Denman Glacier has retreated almost 3 miles over last...

Illustration of Antarctica on Earth from space (stock image). Credit: © harvepino / Adobe Stock East Antarctica's Denman Glacier has retreated 5 kilometers, nearly 3 miles, in the past 22 years, and researchers at the University of California, Irvine and NASA's Jet Propulsion Laboratory are concerned that the shape of the ground surface beneath the…

Mysterious bone circles made from the remains of mammoths reveal clues...

Illustration of mammoths (stock image). Credit: © warpaintcobra / Adobe Stock Mysterious bone circles made from the remains of dozens of mammoths have revealed clues about how ancient communities survived Europe's ice age. About 70 of these structures are known to exist in Ukraine and the west Russian Plain. New analysis shows the bones at…

Heat stress may affect more than 1.2 billion people annually by...

Thermometer, warming concept (stock image). Credit: © vladischern / Adobe Stock Heat stress from extreme heat and humidity will annually affect areas now home to 1.2 billion people by 2100, assuming current greenhouse gas emissions, according to a Rutgers study. That's more than four times the number of people affected today, and more than 12…

Antarctic ice walls protect the climate

Ice formation in Antarctica (stock image). Credit: © Lorraine Kourafas / Adobe Stock Inland Antarctic ice contains volumes of water that can raise global sea levels by several metres. A new study published in the journal Nature shows that glacier ice walls are vital for the climate, as they prevent rising ocean temperatures and melting…

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