News Muncher - searching for alaska

2 weeks ago

Thawing Tundra Is Now a Carbon Source in Fast-Warming Arctic

-- The 10 hottest years on record have all occurred within the past decade, with 2024 likely to be the warmest yet. “It’s not just that the Arctic is warming just like the rest of the world,” said Rich Thoman, a climate scientist at the University of Alaska Fairbanks. “Because of these changes in the frozen environment, we’re seeing this …

Report Arctic Thoman

6 months, 3 weeks ago

Rivers in Alaska are turning orange. It’s an ‘unexpected consequence of climate change’

CNN

CNN — Rivers and streams in Alaska are changing color – from a clean, clear blue to a rusty orange – because of the toxic metals released by thawing permafrost, according to a new study. “But it’s very startling to see it when you’re on some of the most remote wilderness and you’re far from a mine source.” An aerial …

Climate Change Water Alaska Rivers Metal Study Researchers

7 months ago

研究：气候变化导致阿拉斯加河流变为橙色

China Daily

几年前，人们惊讶地发现，美国阿拉斯加数十条河流里的水变成了“橙汁”。研究指出，事实上，这是被铁锈污染的河流，而铁锈则来自因全球变暖而融化的冻土。卫报截图 Dozens of rivers and streams in Alaska are turning rusty orange, a likely consequence of thawing permafrost, a new study finds. 研究作者、加州大学戴维斯分校环境毒理学助理教授布雷特·普林说：“这是美国最原始的一些河流中看到的气候变化的不可预见影响。” The permafrost thaw is exposing minerals to oxygen in a process known as weathering, which increases the acidity of the water and dissolves metals like zinc, copper, cadmium and iron – the most apparent metal that …

River Poulin

1 year, 8 months ago

The Alaskan wilderness reveals the past and the future

Hindustan Times

It is June in the Alaskan Arctic and two grizzlies are traversing the tundra at an hour that would, at lower latitudes, be dawn. In the early days of Alaska’s oil boom a reporter marvelled at oil workers’ fortitude, noting that “another species has been added to the handful capable of surviving in the North Slope wilderness—the oil man.” When …

Climate Change Climate Oil Land Ice Alaska Republican

2 years, 2 months ago

New lakes in Alaska is releasing bubbles full of methane

The Hindu

New lakes are emerging in Alaska due to thawing permafrost and releasing methane—a greenhouse gas—into the atmosphere. The Big Trail Lake in Fairbanks, Alaska, is one such ‘thermokarst lake’ that has come into existence over the last 50 years or so and is continuously belching bubbles filled with methane gas, according to a blog post by NASA. “At Big Trail …

Lakes Gas Alaska Methane Ground Lake Carbon Dioxide

2 years, 6 months ago

Op-Ed: My family sees climate change in the Arctic. Here’s how we’ve learned to take action

LA Times

Spring blossoms have started in most parts of the country, but in Alaska the ice is still melting. He jumps down onto the lake’s four feet of fluffy snow from a “drunken” spruce tree leaning sideways over the lake’s surface. When we talk about climate change, my sons ask: “Are you worried, Mom?” They’ve heard countless media interviewers ask me …

Climate Change Lakes Change Gas Ice Earth Methane

3 years, 1 month ago

In the Arctic's, global warming is happening three times faster than in the rest of the world

Firstpost

Permafrost – defined as soil that stays frozen year-round for at least two consecutive years – lies under about a quarter of the land in the Northern Hemisphere. Vicious circle In the 1970s, “when researchers first started showing up and investigating these habitats, these ponds didn’t exist”, says Larson, project coordinator for the Climate Impacts Research Centre at Umea University, …

Climate Water Sweden Carbon Ground Warming Frozen

3 years, 8 months ago

Lightning strikes could spark more Arctic wildfires, says study

Live Mint

Lightning strikes inside the Arctic circle may double this century, sparking widespread tundra fires and increasing the risk of setting off the carbon time bomb held within permafrost, new research showed Monday. "We projected how lightning in high-latitude boreal forests and Arctic tundra regions will change across North America and Eurasia," said Yang Chen, a researcher at the University of …

Strikes Lightning Arctic Lightning Strikes

4 years, 4 months ago

If Climate Change Wasn't Bad Already, Rise in Temperature Could Unearth New Epidemics

News 18

Long-dormant viruses brought back to life; the resurgence of deadly and disfiguring smallpox; a dengue or zika "season" in Europe. "Mosquitoes moving their range north are now able to overwinter in some temperate regions," said Jeanne Fair, deputy group leader for biosecurity and public health at the Los Alamos National Laboratory in New Mexico. "An increase in mean temperature could …

Climate Change Europe Disease Global Warming Change Climate Dengue