Alan Abramowitz on Partisan Politics in America


Alan Abramowitz is the Barkley Professor of Political Science at Emory, and a renowned expert on national politics and elections. His expertise includes election forecasting models, party realignment in the United States, congressional elections and the effects of political campaigns on the electorate. His latest book is "The Disappearing Center: Engaged Citizens, Polarization, and American Democracy."

Greenland loses 4 trillion pounds of ice in one day

Normally, the landscape in this photo would be a white ice sheet.

Surprising Science
  • Climate scientists say that Greenland is experiencing ice losses that are unusually early and heavy.
  • Two main weather factors are fueling the losses: a high-pressure system and the resulting low cloud cover.
  • Greenland is a major contributor to sea-level rise.
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Has a black hole made of sound confirmed Hawking radiation?

One of Stephen Hawking's predictions seems to have been borne out in a man-made "black hole".

Image source: NASA/JPL-Caltech
Surprising Science
  • Stephen Hawking predicted virtual particles splitting in two from the gravitational pull of black holes.
  • Black holes, he also said, would eventually evaporate due to the absorption of negatively charged virtual particles.
  • A scientist has built a black hole analogue based on sound instead of light.
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Permafrost is melting 70 years earlier than expected in Arctic Canada

It's a "canary in the coalmine," said one climate scientist.


MARK RALSTON/Contributor
Surprising Science
  • A team of researchers discovered that permafrost in Northern Canada is melting at unusually fast rates.
  • This could causes dangerous and costly erosion, and it's likely speeding up climate change because thawing permafrost releases heat-trapping gasses into the atmosphere.
  • This week, Canada's House of Commons declared a national climate emergency.
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