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We the Jury

Posted in Climate, Contemporary economics

For all the turmoil in Washington, the single most interesting item I read was a News and Comment story in Science about something that happened 125,000 years ago. During a 13,000-year interlude of warming between two ice ages, temperatures were only slightly higher than they are today.  Nevertheless an Antarctic ice shelf fell into the sea. By the end of the period, sea levels around the world were 6 to 9 meters higher than today. Why?  According to new evidence reported last week at the American Geophysical Union, in Washington, D.C., the West Antarctic Ice Sheet collapsed.  Something of the