The extraordinarily cold, snowy weather that hit parts of the US East Coast and Europe was the result of a collision of two periodic weather patterns in the Atlantic and Pacific Oceans, a new study in the journal Geophysical Research Letters finds. (American Geophysical Union release)
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Outlined in red in this true-color image from July 27, 2010, the Bull Fire produced thick plumes of smoke as it burned near the southern edge of the Sequoia National Forest in southern California.
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Acquired July 28, 2010, this natural-color image shows fires east of Moscow blanketing the region in thick smoke.
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