Energy use & unexplained winter warming in N Asia, N America

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kramer
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Energy use & unexplained winter warming in N Asia, N America

Post by kramer » Mon Jan 28, 2013 1:06 pm

A "settled science" "debate is over" update. Waste heat (this is not the same as UHI) from human energy use is playing a small role in winter warming:
Energy consumption and the unexplained winter warming over northern Asia and North America

The worldwide energy consumption in 2006 was close to 498 exajoules. This is equivalent to an energy convergence of 15.8 TW into the populated regions, where energy is consumed and dissipated into the atmosphere as heat. Although energy consumption is sparsely distributed over the vast Earth surface and is only about 0.3% of the total energy transport to the extratropics by atmospheric and oceanic circulations, this anthropogenic heating could disrupt the normal atmospheric circulation pattern and produce a far-reaching effect on surface air temperature. We identify the plausible climate impacts of energy consumption using a global climate model. The results show that the inclusion of energy use at 86 model grid points where it exceeds 0.4 W m−2 can lead to remote surface temperature changes by as much as 1 K in mid- and high latitudes in winter and autumn over North America and Eurasia. These regions correspond well to areas with large differences in surface temperature trends between observations and global warming simulations forced by all natural and anthropogenic forcings1. We conclude that energy consumption is probably a missing forcing for the additional winter warming trends in observations.

http://www.nature.com/nclimate/journal/ ... e1803.html
“We should have been warned by the CFC/ozone affair because the corruption of science in that was so bad that something like 80% of the measurements being made during that time were either faked, or incompetently done.”

- Scientist James Lovelock

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kramer
Posts: 8852
Joined: Mon Nov 19, 2007 8:38 pm

Re: Energy use & unexplained winter warming in N Asia, N Ame

Post by kramer » Mon Jan 28, 2013 1:48 pm

A related story:
Big cities' heat can change temperatures a continent away -U.S. study

* Burning fossil fuels in urban areas changes air currents

* City heat hitches a ride over vast areas of Northern Hemisphere

By Environment Correspondent Deborah Zabarenko

WASHINGTON, Jan 27 (Reuters) - The energy big cities burn - mostly coal and oil to power buildings, cars and other devices - produces excess heat that can get into atmospheric currents and influence temperatures thousands of miles (km) away, a new study found.
“We should have been warned by the CFC/ozone affair because the corruption of science in that was so bad that something like 80% of the measurements being made during that time were either faked, or incompetently done.”

- Scientist James Lovelock

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