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Image: Galapagos bay
Study: Tropical rain band shifting north
Earth's most prominent rain band, near the equator, has been moving north at an average rate of almost a mile a year for three centuries, likely because of a warming world, scientists say. Full story
Martin Bernetti / AFP-Getty Images
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NASA
Shuttle launch delayed due to lightning
NASA postponed Saturday's scheduled launch of the space shuttle Endeavour by at least a day after several lightning strikes were reported near the Florida launch pad.
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Interactive
Vital Signs of a Warming World
The science, impacts and scenarios of climate shifts
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Slide shows
AP
Warming signals
View images from around the world that show signs of global warming.
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Reuters
Ice at the edge
View images of Greenland, where coastal edges of its vast ice cap are melting at an alarming rate.
Interactives
Vital Signs of a Warming World
The science, impacts and scenarios of climate shifts
Carbon trade game
Learn how "cap and trade" works and play along in a simulated market.
Rising seas
What future sea levels could mean for some of America's favorite places
The greenhouse effect
How the Earth maintains a temperature conducive to life
Cooling the planet
Check out five far-out ideas on how to engineer a cooler Earth.
Eyeing the ice
The National Science Foundation's Tom Wagner on why climate expert study Antarctica.
Melting mountains
Data shows five areas of concern
  Weather Channel