Ice melting on a berg on the Greenlandic coast. Greenpeace and an independent NASA-funded scientist completed measurements of melt lakes on the Greenland Ice Sheet that show its vulnerability to warming temperatures. The measurements are the last scheduled activity as the Greenpeace ship Arctic Sunrise wraps up its two-month expedition to document the impacts of climate change on Greenland's ice sheet and glaciers.

Image | January 24, 2011

Ice melting on a berg on the Greenlandic coast. Greenpeace and an independent NASA-funded scientist completed measurements of melt lakes on the Greenland Ice Sheet that show its vulnerability to warming temperatures. The measurements are the last scheduled activity as the Greenpeace ship Arctic Sunrise wraps up its two-month expedition to document the impacts of climate change on Greenland's ice sheet and glaciers.

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Reggie Watts Yodels for Wind Power #ClickClean

Video | August 19, 2014 at 9:09

There’s hope for all of us dirty clickers. Join us, and ask Internet companies to switch to a greener online world, so we can all enjoy a greener offline world. Learn what's up at clickclean.org #ClickClean

Reggie Watts Hydropowers the Internet #ClickClean

Video | August 19, 2014 at 9:05

Clicking dirty uses a lot of energy. Dirty energy. Join us, and ask Internet companies to switch to a greener online, so we can all enjoy a greener offline. Learn what's up at clickclean.org #ClickClean

Reggie Watts Goes Solar for #ClickClean

Video | August 19, 2014 at 8:58

Together, we can stop clicking dirty. Join us, and ask Internet companies to switch to a greener online, so we can all enjoy a greener offline. Learn what's up at clickclean.org #ClickClean

Reggie Watts' Grandma Clicks Dirty #ClickClean

Video | August 19, 2014 at 8:42

Let's face it, you've been clicking dirty. But that can change. Join us, and ask Internet companies to switch to a greener online, so we can all enjoy a greener offline. Learn what's up at clickclean.org #ClickClean

Marmot licks GoPro

Video | August 14, 2014 at 10:04

In Glacier National Park, global warming is melting glaciers and shrinking the alpine tundra environment as treelines move higher up the mountains. Shrinking tundra threatens marmots and other animals that live up high in these mountains.

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