urban heat island effect

Thu, 2011-10-27 11:19Steve Horn
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The Daily Show Notes Irony of Koch-Funded Study Affirming Global Warming is Real

Last night's entire first segment of The Daily Show focused on the recent study funded by the Koch Brothers that confirmed (again) that climate change is indeed a reality - an ironic twist given the Kochtopus' track record of fueling the climate change denial echo chamber with upwards of $55 million.

As described in an earlier piece on DeSmogBlog, “The [Berkeley Earth Surface Temperature (BEST)] paper, an effort to confirm or debunk whether the urban heat island (UHI) effect was skewing climate records, has affirmed - again - that global temperature records are accurate and worrisome.”

In a manner that only John Stewart and his Daily Show team can, they unpacked the hilarious irony of the whole situation. The segment, roughly ten minutes long, is well worth watching for the laughs alone, especially the McRib-ing of the mainstream media's pathetic coverage of climate science and fixation on corporate advertising ploys. And Aasif Mandvi's interviews, of course. Watch the video below:

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Fri, 2011-10-21 16:02Brendan DeMelle
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Urban Heat Island – Favorite Skeptic Myth Debunked Again, This Time By Koch-Funded Science

Climate skeptics are once again proven wrong, and this time even Koch money can't skew the facts.
 
Have you heard the one from climate deniers that the “Urban Heat Island” effect has ruined all the weather stations and made the data they collect completely useless? The deniers claim any warming trend seen from these temperature recordings is from concrete buildings and asphalt roads – and that climate change is therefore a myth?
 
That would be false. Says whom, you ask?  How about a new Koch-funded scientific study?
 
An investigation by the Berkeley Earth Surface Temperature (BEST) project released yesterday once again thoroughly dispatches the skeptic myth about the “Urban Heat Island” (UHI) effect.

Many global warming skeptics have long claimed that the urban heat island effect is so strong that it has skewed temperature measurements indicating that global warming is happening. The skeptics argue that efforts to curb global warming pollution are therefore unnecessary, citing their pet theory that surface temperature stations were swallowed by, or moved closer to, cities, thus skewing surface temperature records on the whole.
 
The BEST papers – which still must go through rigorous peer review – confirm what climate scientists have correctly stated previously, demonstrating without doubt that “very rural” temperature stations miles from any new “UHI” towns or cities have also recorded warming at 0.9 degrees Celsius over the last century. 



To put it plainly, even the Kochtopus denial machine will have a tough time trying to twist this Koch-funded project’s findings. It looks like the Kochs backed the wrong horse here - one wonders whether they thought Hadley CRU would be proven wrong?

Thu, 2010-01-21 18:37Mitchell Anderson
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Urban Heat Island Myth is Dead

Another climate change denier myth - this one a favorite of Anthony Watts and his Watts Up With That” blog - has just bit the dust.

Many skeptics for years have sought to explain away decades of climate research by showing slides of weather station thermometers sited next to heating vents or surrounded by asphalt.

This much-touted “urban heat island effect” was supposed to trump all those fancy graphs and equations that egghead scientists were fixated on. Except it’s not true.

A recent peer-reviewed paper in the Journal of Geophysical Research looked at data from 114 weather stations from across the US over the last twenty years and compared measurements from locations that were well sited and those that weren’t.

They did find an overall bias, but it was towards cooling rather warming.

According to the authors,

the bias is counter intuitive to photographic documentation of poor exposure because associated instrument changes have led to an artificial negative (“cool”) bias in maximum temperatures and only a slight positive (“warm”) bias in minimum temperatures.”

Oops.

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