Energy consumption and the unexplained winter warming over northern Asia and North America(5 Page pdf, Guang J. Zhang, Ming Cai and Aixue Hu, Nature Climate Change, Jan 27, 2013)
Also discussed here: Cities change temperatures for thousands of miles(UCAR ATMOS News, Jan. 27, 2013)
And here: City heat affects temperatures 1,000 miles away(The Times of India, Jan. 28, 2013)
Today we review global climate modeling research that examined the contribution of the waste heat produced by buildings and vehicle emissions in very large cities. Although this heat is small compared to the warming from greenhouse gasses in the atmosphere for the entire world, the model simulations reveal large changes in the regional circulation near these cities which may intensify local weather events such as droughts or extreme storms.
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