Professor Greg Henry of the University of British Columbia also said higher temperatures meant larger plants were starting to spread across the tundra, which is usually covered by small shrubs, grasses and lichen. The thicker plant cover means the region is getting darker and absorbing more heat. Full Story »
Posted by Dwight Rousu
“We’re finding that the tundra is actually giving off a lot more nitrous oxide and methane than anyone had thought before,” More »
While actual temperature readings are suprisingly suspect as indicators of global warming, plant growth, time of bud burst and so forth integrates temperature over the year and is a reliable indication that something is actually hapening out there. If global warming is actually happening, we should soon see a reversal of prevailing winds over the tundra and a shift north of the polar jet stream.
I am interested in knowing if human global warming is real, and if it is, how dangerous is it to human civilization.
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