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Before and After: 2012 in pictures
How the world changed, rebuilt, and celebrated
Last Updated: Dec. 3, 2012
The new year began with a deep freeze in typically temperate European locales; spring followed with rapidly melting Arctic sea ice. In the summer and fall, monsoons and heavy rains drenched Pakistan and Nigeria, and superstorms wreaked havoc on the U.S. East Coast.
In between, communities recovered from disaster, cities dimmed their lights for Earth Hour, athletes converged in London, and new buildings altered the ever-changing vista. Here is a look at some of the changes observed in 2012. Select the red marker to open the window, and drag the slider left and right to see the before and after views.