By Environment Correspondent Alister Doyle OSLO, May 6 (Reuters) - The Arctic ecosystem, already under pressure from record ice melts,...

From Climate Central's Andrew Freedman: Rapidly shrinking Arctic sea ice is poised to open the region to many more kinds of ocean-going vessels tha...

Adios to 2012 and hello to lucky number 13. Where did climate take us in 2012 and what can we expect for the next 12 -- scratch that, 11 -- months?

America's Arctic Ocean is central to the sustenance and culture of indigenous communities that have depended on its bounty for thousands of years.

In May 2009 my publisher (Don Gorman) asked me to write The Incomparable Honeybee. In October of that year it was in bookstores and I begun to write e...

By Becky Oskin, OurAmazingPlanet Staff Writer: During the Arctic spring and summer, ponds of freshwater appear on the melting ice, dotting the land...

Over the past couple Januaries (2011 and 2012) I have kept a scorecard of Earth's wild weather. Anyone who doesn't accept that we are experiencing hum...

In reducing the overall risk of Arctic and Aleutian shipping, the glass is still perhaps one-quarter full, three-quarters empty. The system is far from secure.

From Climate Central's Andrew Freedman: SAN FRANCISCO — Global warming is rapidly driving the Arctic into a volatile state characterized by massi...

To make a complex story simple, polar bears are threatened by habitat loss. We may hold onto polar bears as a species to the end of the century, but this is predicated on many hopeful elements.

There is no contradiction for global warming to cause dramatic sea ice loss in the Arctic and a slight expansion in the Antarctic. There is no doubt in my mind that the implications for polar bears habitat loss are serious and sobering.

We might as well keep it simple and just say this superstorm is caused by our human-made climate change.

Trying to save the arctic is currently the most vital thing in the world, the front lines of the climate war, so let's all applaud Greenpeace for taking up the cause.

WASHINGTON (AP) — The ice goes on seemingly forever in a white pancake-flat landscape, stretching farther than ever before. And yet in this confound...

That's right: the volume of arctic sea ice this September minimum was probably about half of what it was, just back in 2007. This figure should deeply trouble any reasonable human being.

ANCHORAGE, Alaska (AP) — The stars lined up — almost — for Shell Oil to drill exploratory wells this year in waters off Alaska's north coast. ...

A tipping point is hitting us in the face, and it seems nothing will be done soon enough, while policy makers and the public at large continue to debate if global warming is really man-made, or if measures to reduce greenhouse gases will stall the economy.

As Arctic sea ice levels hit a new record low this month, scientists and activists gathered to discuss how to bridge the gap between scientific facts ...

* Obama administration accused of missing legal deadline * Two seal species would follow polar bear in threatened listing ...

The reasons for thinking that there isn't an arctic crisis are about as firm as cotton candy. I'm sorry if this sounds "alarmist," but the arctic -- fundamental to the stability of our weather patterns, climate and agriculture -- is rapidly coming apart.

Of all the projected nightmare scenario effects of global warming, one has seized my imagination like no other. I cannot erase the image of a lone polar bear standing on an island of ice barely bigger that it is, floating alone in the Arctic Sea. Drifting toward certain death by starvation or drowning.

We have to act fast. If we don't, we'll have even more to mourn than the death of the Arctic.

As the ice melts, and the vast polar reflecting surface diminishes, the planet absorbs more and more of the sun's energy and... grows warmer. More ice melts. So what?

I've been an activist since the age of 15. I've seen the inside of a prison cell for the cause, but nobody -- even with experience -- can honestly say that there is no fear when you set out to take action involving risk to personal safety, or the risk of imprisonment.