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Conservation Science for a Healthy Planet

Greenland on thin ice?

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from ScienceDaily:

Most of Greenland ice melted to bedrock in recent geologic past, says study

Posted: 07 Dec 2016 10:34 AM PST

Scientists have found evidence in a chunk of bedrock drilled from nearly two miles below the summit of the Greenland ice sheet that the sheet nearly disappeared for an extended time in the last million years or so. The finding casts doubt on assumptions that Greenland has been relatively stable during the recent geological past, and implies that global warming could tip it into decline more precipitously than previously thought.

Greenland on thin ice?

Posted: 07 Dec 2016 10:34 AM PST

First-of-their-kind studies provide new insight into the deep history of the Greenland Ice Sheet, looking back millions of years farther than previous techniques allowed. However, the two studies present some strongly contrasting evidence about how Greenland’s ice sheet may have responded to past climate change.

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