Earth's permafrost starts to squelch
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Scientists find many regions on Earth that once had permanent frozen ground are now experiencing a thaw.
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Nematodes, which occupy the top rung of the food chain in the Antarctic Dry Valleys, are dying off in an alarming example of change.
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New research is raising concerns that global warming may be triggering a self-perpetuating climate time bomb trapped in once-frozen permafrost.
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Global warming is set to accelerate in the Arctic and bring drastic change for people and wildlife in coming decades, according to a draft report that has opened cracks among nations in the region about how to slow the thaw.
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A new movie showing  young polar bears and walruses struggling toward adulthood in a  melting Arctic puts a pair of charismatic faces on the global  warming threat.
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The Arctic is undergoing rapid and possibly irreversible climate change, says a major report.
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Tiny channels in the Arctic ice support creatures that play a crucial role in climate-affected ecosystems.
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An accelerating thaw of the Arctic may open vast regions for oil and gas exploration but that brings worries of spills in the fragile environment, experts said on Thursday.
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Its vastness protects it from the immediate effects of global warming, but the world's largest ice sheet could be damaged if things get worse.
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Greenhouse gases have contributed to a gradual warming of the ecologically-fragile Arctic region, causing massive climate changes, including melting glaciers and sea ice, according to a soon-to-be-released environmental study.
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Scientists believe they have tracked down the origin of a low-frequency "hum" that emanates from the Earth.
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WASHINGTON - Scientists say changes in the earth&#39;s climate from human influences are occurring particularly intensely in the Arctic region, evidenced by widespread melting of glaciers, thinning sea ice and rising permafrost temperatures.
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Scientists know that Earth endures cyclical ice ages, but they don't know why. Perhaps you do. In the Wired Wiki.
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SILVER SPRING, Maryland  - A new movie showing young polar bears and walruses struggling toward adulthood in a melting Arctic puts a pair of charismatic faces on the global warming threat.
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Global warming is heating the Arctic almost twice as fast as the rest of the planet in a thaw that threatens the livelihoods of millions of people and could wipe out polar bears by 2100, according to an eight-nation report released on Monday.
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SEISMOLOGISTS believe they have pinpointed the source of a mysterious low-frequency &quot;hum&quot; that emanates from the Earth, the British science journal Nature reports.
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LONDON - The Earth&#39;s silent hum is created by interactions between the atmosphere, ocean and sea floor, researchers say. Planet Earth produces a deep, low frequency rumble far below the limit of human hearing.