National Geographic News
February 28, 2007
Simultaneous warming on Earth and Mars suggests that our planet’s recent climate changes have a natural—and not a human-induced—cause, according to one scientist’s controversial theory.
Earth is currently experiencing rapid warming, which the vast majority of climate scientists says is due to humans pumping huge amounts of greenhouse gases into the atmosphere.
In 2005 data from NASA’s Mars Global Surveyor and Odyssey missions revealed that the carbon dioxide “ice caps” near Mars’s south pole had been diminishing for three summers in a row.