MCraigW writes "Simultaneous warming on Earth and Mars suggests that our planet's recent climate changes have a natural — and not a human-induced — cause. Earth is currently experiencing warming, which climate scientists say is due to humans pumping greenhouse gases into the atmosphere.
Mars, too, appears to be enjoying more mild and balmy temperatures.
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.
Habibullo Abdussamatov, head of the St. Petersburg's Pulkovo Astronomical Observatory in Russia, says the Mars data is evidence that the current global warming on Earth is being caused by changes in the sun."