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Mars has been warming for the last 80,000 years. We can tell from ice sheet development on Mars.Mars Melt Hints at Solar, Not Human, Cause for Warming, Scientist Says
Mars Melt Hints at Solar, Not Human, Cause for Warming, Scientist Says
Kate Ravilious
for 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.
I think we are in a prolonged sun spot minimum which means less solar radiation but the Earth is heating up which is counter intuitive.
Mars has approximately 160,000 year orbital wobble that affects Martian climate.