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As spring comes, snow in the Northern Hemisphere recedes, and forests in the eastern part of South America get heavier rains, turning most of the continent to a rich green color. Even when much of the Southern Hemisphere is lush, Australia remains dry through spring and most of the year.
Snowlines in Asia, Alaska and western Canada have almost completely receded in summer. The band of green on the African continent moves north, though the Sahara Desert remains dry--as it does throughout the year.