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From temperate southern latitudes, both the moon and the Comet Panstarrs are deeply buried in the glare of evening twilight
Matt Daniel's WeatherGlobe
U.S. snow and ice in 2013 compared to 2012
Blogus scientificus by Alex Reshanov
Humans aren't top predators, says new report
Earth Trekker by Deanna Conners
Early warning system for abrupt climate impacts