Global warming sceptics are pointing to recent record cold temperatures in parts of North America and Asia and the return of Arctic Sea ice to suggest fears about climate change may be overblown.
According to the US National Climatic Data Center (NCDC), the average temperature of the global land surface in January 2008 was below the 20th century mean (-0.02°F/-0.01°C) for the first time since 1982.
Temperatures were also colder than average across large swathes of central Asia, the Middle East, the western US, western Alaska and southeastern China.
The NCDC reported that the cold conditions were associated with "the largest January snow cover extent on record for the Eurasian continent and for the Northern Hemisphere".
In some parts of China and central Asia, snow fell for the first time in living memory, the NCDC noted.
"For the contiguous United States, the average temperature was 30.5°F (-0.83°C) for January, which was 0.3°F (0.2°C) below the 20th century mean and the 49th coolest January on record, based on preliminary data".
Much of North America was also hit by the heaviest snowfall since the 1960s.
Meanwhile, the US National Snow and Ice Data Centre found the January 2008 Northern Hemisphere sea ice extent, while below the 1979-2000 mean, was greater than the previous four years.
And the January 2008 Southern Hemisphere sea ice extent was significantly above the 1979-2000 mean, ranking as the largest sea ice extent in January over the 30-year historical period.
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"OK, so one winter does not a climate make. It would be premature to claim an Ice Age is looming just because we have had one of our most brutal winters in decades," writes Lorne Gunter in the National Post.
"But if environmentalists and environment reporters can run around shrieking about the manmade destruction of the natural order every time a robin shows up on Georgian Bay two weeks early, then it is at least fair game to use this winter's weather stories to wonder whether the alarmist are being a tad premature."
He also quotes Kenneth Tapping, of Canada's National Research Council, who oversees a giant radio telescope focused on the sun and is convinced the Earth is destined for a long period of severely cold weather if solar activity does not pick up soon.
"The last time the sun was this inactive, Earth suffered the Little Ice Age that lasted about five centuries and ended in 1850," Gunter writes.
The Lorne Gunter piece mentioned above is here.
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