After all, what do pre-industrial world temperature trends have anything to tell us about the effect of man-made Co2 on 20th century temperatures?
Real-world temperature data tell us an entirely different story.
There is little doubt that over time this will raise the world's temperature, changing the climate in potentially damaging ways.
Presumably a comparatively modest drop in the world's surface temperature would cancel out presumed global warming.
If this were to change, and the Earth became unstable, then parts of the world could experience much greater temperature swings than we are used to through any given year, with freezing Arctic temperatures in winter followed by blazing hot temperatures in summer.
In total, around one third of temperature sites around the world reported global cooling since the 1950s but the remaining two thirds showed warming, according to the study.
University of California, Berkeley physics professor Richard Muller analyzed land-based temperature readings from temperature stations around the world and found two-thirds indicate warming temperatures and one-third indicate cooling temperatures.
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BizEE Software, a South Wales, U.K., company that develops software to help building managers assess their energy-fuel needs, publishes a measure called degree days for places around the world that highlights this variation in temperature.
For instance, the World Bank just released a report, "Turning Down the Heat, " which explores a world with four degrees Celsius of global temperature growth.
The shifts in these ecosystem boundaries provide an index of global climate change, which can be observed and compared in all continents of the world, using standard sets of climatic measurements, such as precipitation and temperature.
Policies enacted by the developed world, including the U.S., will have little impact on global temperature.
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Dr Chris Huntingford, of the Centre for Ecology and Hydrology, said the temperature increase was "in agreement with simulations by many independent climate centres around the world".
BBC: 2011 is UK's second warmest year on record - Met Office
The EPA engineers came up with a formula that automakers around the world have long been groping for--an engine that explodes fuel at such a relatively low temperature (below 2, 000 degrees Fahrenheit) that almost no noxious nitrogen oxides are produced.
Although the global temperature seems to be rising very slowly, the implications could be acute in some regions of the world.
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