| by Richard Muller, NY Times. An article relevant to Climate Change chapter 4. Excerpt: Last year, following an intensive research effort involving a dozen scientists, I concluded that global warming was real and that the prior estimates of the rate of warming were correct. I’m now going a step further: Humans are almost entirely the cause. My total turnaround, in such a short time, is the result of careful and objective analysis by the Berkeley Earth Surface Temperature project…Our results show that the average temperature of the earth’s land has risen by two and a half degrees Fahrenheit over the past 250 years, including an increase of one and a half degrees over the most recent 50 years. Moreover, it appears likely that essentially all of this increase results from the human emission of greenhouse gases....Read more: http://www.nytimes.com/2012/07/30/opinion/the-conversion-of-a-climate-change-skeptic.html?_r=1&emc=eta1 Note: Author of the "opinion" piece is Richard Muller, UC Berkeley professor. Among his accomplishments are having started The Berkeley Real Time Supernova Search (with Carl Pennypacker, co-founder of HOU) which then became The Berkeley Automated Supernova Search, which then became the Supernova Cosmology Project, which discovered the accelerating expansion of the universe, for which Muller's graduate student, Saul Perlmutter, shared the 2011 Nobel Prize in Physics.
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