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Mangroves move inland as seas rise

Adapting to the damaging effects of climate change, plants are gradually moving to where temperatures are cooler, rainfall is greater, f...


Earth had close encounter with a 40-yard-wide asteroid

Monday's asteroid likely "would produce a tsunami" had it landed in an ocean. Asteroid 2009 DD45, thought to be between 68 and 152 feet across, passed within 38,000 miles of Earth Monday - a close call in astronomical terms. It raced by Earth almost seven times closer than the moon at 6:44 p.m. New York time. "NO OBJECT OF THAT SIZE, OR LARGER, HAS BEEN OBSERVED TO COME CLOSER TO THE EARTH."
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