Major climate change skeptic changes his mind - Chicago News and Weather | FOX 32 News

Major climate change skeptic changes his mind

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Few subjects have been more controversial than global warming and climate change. Now, Richard Muller, professor of physics at University of California Berkeley one of the most outspoken opponents of global warming has reversed his opinion and is convinced that prior estimates regarding the rate of warming are indeed correct and that humans are almost entirely the cause of that warming".

Muller is the co-founder of the Berkeley Earth Surface Temperature team which independently assesses any questionable evidence of global warming.  Their analysis has now indicated that global warming is real and not a passing weather pattern. Furthermore they find that the average global land temperature has risen by 2.5 degrees F since 1750. 1.5 degrees F of that increase took place in the past 50 years. This finding is in line with past studies by the National Oceanic and Atmospheric Administration (NOAA), NASA and others.

Muller and his team at Berkeley have further established that blame from natural variations in Earth's climate is not possible and that carbon dioxide emissions by humans is essentially the sole cause of global warming.

The carbon dioxide curve depicted above closely follows the temperature trend since 1750 with the red line representing atmospheric concentration of CO2 almost perfectly overlaying the black line representing the observed warming of the Earth.

The study found that natural variability from solar cycles, El Niño, La Niña and shifts in the Atlantic sea surface temperatures only accounted for miniscule warming or cooling during the past 150 years and were not the cause of the more aggressive warming recorded.

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