Understandable Earth Science

A nice explanation of why there is no evidence for a global warming pause

Open Mind

UPDATE: A new post at RealClimate is very relevant, and well worth the read.


One day, a new data set is released. The rumor runs rampant that it’s annual average global temperature since 1980.

artdat

Climate scientist “A” states that there is clearly a warming trend (shown by the red line), at an average rate of about 0.0139 deg.C/yr. She even computes the uncertainty in that trend estimate (using fancy statistics), and uses that to compute what’s called a “95% confidence interval” for the trend — the range in which we expect the true warming rate is 95% likely to be; it can be thought of as the “plausible range” for the warming rate. Since 95% confidence is the de facto standard in statistics (not universal, but by far the most common), nobody can fault her for that choice. The confidence interval is from 0.0098 to 0.0159 deg.C/yr. She also…

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