http://www.associatedcontent.com/article/203375/mars_heats_up_fuels_global_warming...

Mars Heats Up, Fuels Global Warming Debate

By Jack McGoughey CLOUT

Published April 04, 2007 Click to contact me

Skeptics over global warming have
jumped on news that Mars is heating up to back their skepticism that
humans are causing global warming on Earth.

The research, coming from U.S. planetary scientists, suggests that Mars
warmed by about 0.65C from the 1970s to the 1990s. This is similar to
Earth's 0.6C average temperature rise during the 20th century.

"It could be coincidental or it might be the needle in the haystack,"
said climatologist William Kininmonth, former head of the National
Climate Centre in Melbourne, Australia.

Kininmonth said that the research, which was published in the journal
Nature, showed that there was enough natural climate variability to
explain global warming on Earth.

Not all scientists agree with that, however, climate scientist Neville
Nicholls at Monash University in Melbourne.