Baffin Island Lake's Sediment Reveals Dramatic Temperature Rise Over The Last 50 Years »
Posted By Mikunited 1 month, 1 week ago in Science & TechnologyA frozen lake on a remote island off Canada's northern coast has yielded remarkable insights into how the Arctic climate has changed dramatically over 50 years.
Read Full Story at independent.co.uk »
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Mikunited
I'm 49 and work as a painter and decorator.I live in London,with my long time partner,she is a teacher.We have ...
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Klarissa1 month, 1 week ago
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"One notices no mention in the article of the well-established fact of the Medieval Warming Period, when world temperatures went much higher than they are now."
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""Archaeologists have found wooden items and a length of yarn at Nunguvik in the south which they believe indicate that visiting Vikings were interacting with the local natives, known as the Dorset people, who lived on Baffin Island between 500BC and AD1500." Yes, why were Vikings going to Baffin Island and people living there during this general period? (Actually the MWP started a bit later.) Because it was warmer, that's why. The Vikings came from Greenland, parts of which were, during the MWP, warm enough for agriculture. No doubt Baffin Island was also warmer and more hospitable for human life. Soon it may perhaps become so again. Good. Basically warm times are better times on this Earth for life, and colder times are bad times."-
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Tangent0011 month, 1 week ago
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"One notices no mention in the article of the well-established fact of the Medieval Warming Period, when world temperatures went much higher than they are now."
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Um, no. Average global temperatures are higher in recent years than they were during the MWP.
http://upload.wikimedia.org/wikipedia/commons/c/c1...
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Georgia501 month, 1 week ago
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4th grader's science question:
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Q: What about cloud cover over this period? Could a reduction in cloud cover be responsible for increased heat over Baffin Island? After all, it's been PROVEN that an increase in cloud cover reflects more of the sun's rays back into outer space.
Sophisticated teacher's erudite response:
A: You damn knave! How DARE you question Global Warming and man's role in causing it? Off to the Bastille, foul urchin!-
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Tangent0011 month, 1 week ago
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Yes, cloud cover does reflect more sunlight back into space, but it also acts as a blanket for radiant heat. As you have pointed out yourself, water vapor is a powerful greenhouse gas. Lack of water vapor in the air is why deserts get chilly at night. On a cloudless summer night, the Sahara can dip down to around 40 degrees even after a 100+ degree day.
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smithichie1 month, 1 week ago
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Venus is completly cloud covered and it's over 850F on the surface! Clearly the sun is getting something through.
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Here on Earth, people get sunburns on cloudy days. At night low temps are associated with clear nights. Clouds act like a blanket trapping heat.
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Mikunited1 month, 1 week ago
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Mikkit--The forests in medieval times were not smaller than now!!Europe was one of the most populated areas and had forest from eastern Spain through to Russia,almost unbroken.Britain and Scandinavia were almost entirely forested,except the most northerly areas of Scandinavia.
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Asia had huge tracts of tropical and sub tropical forests.
The rain forests of Africa and South America,were massive in comparison to today.
Canada(except high above the Arctic Circle)and the States,except the deserts and prairies were almost totally forested.There was many times the amount of forests in the 1200ce World than there is now
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