A report from a journalist with gritted teeth:
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.
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