Beijing tests traffic limits ahead of Olympics with odd-even rule
Beijing restricted private cars for a four day test to reduce gridlock and pollution. Odd numbered plates were allowed while many commuters used buses taxis or the subway as officials aim to remove about 1.3 million cars daily from the city.
MENTIONED IN THIS ARTICLE
Beijing
Zhang Jie
Zhang
International Olympic Committee
Jacques Rogge
Sun Weide
Xinhua
Arctic sea ice hits record low in satellite era
The National Snow and Ice Data Center reports 2.02 million square miles of Arctic ice, the smallest extent in the satellite record. Worsening melt focuses on East Siberian and Beaufort seas north of Alaska, with Canada’s archipelago also affected.
MENTIONED IN THIS ARTICLE
Washington
Arctic
National
East Siberian
Beaufort Sea
Alaska
Canadian Archipelago
Atlantic
Arctic Ocean
Boulder
Colo
Cooperative Institute For Research In Environmental Sciences
University of Colorado
NASA
National Oceanic and Atmospheric Administration
National Science Foundation
Ground squirrels heat tails to scare rattlesnakes
California researchers report ground squirrels raise tail temperatures by up to 12 degrees to warn rattlesnakes. In a study in the Proceedings of the National Academy of Sciences UC Davis scientists show tail heating as a silent signal to deter snakes, part of an evolved defense against a key predator.
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University of California, Davis
National Academy of Sciences
California
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