Earth's damaged ozone should recover by 2050, although the hole over Antarctica may take longer.
In 36 city programs there have been zero bike share-related deaths since the first bikes hit the streets in 2007.
Four years after a BP oil rig exploded and flooded the Gulf of Mexico with an estimated 170 million gallons of oil, scientists have discovered further evidence of coral communities affected by this environmental disaster.
The cruising season is here; how much do you know about this type of holiday?
California could be completely powered by renewable energy, according to a plan that uses available technology. Continue reading →
Here are some recent striking images of our planet from the Web.
A river in China that's normally unpolluted suddenly turned blood red one morning last week.
The Great Pacific Garbage Patch may be developing permanent features, such as trash islands.
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