To those thinking human caused climate change is still somewhat of an unsettled issue, ask yourself, does the 0.001% chance that it is not us really mean it is unsettled? Ive always been a fan of what the numbers tell us. This is a good example why. Detecting and measuring human influence Our research team also explored the chance of relatively short periods of declining global temperature. We found that rather than being an indicator that global warming is not occurring, the observed number of cooling periods in the past 60 years strongly reinforces the case for human influence. We identified periods of declining temperature by using a moving 10-year window (1950 to 1959, 1951 to 1960, 1952 to 1961, etc.) through the entire 60-year record. We identified 11 such short time periods where global temperatures declined. Our analysis showed that in the absence of human-caused greenhouse gas emissions, there would have been more than twice as many periods of short-term cooling than are found in the observed data. There was less than 1 chance in 100,000 of observing 11 or fewer such events without the effects of human greenhouse gas emissions. theconversation/99-999-certainty-humans-are-driving-global-warming-new-study-29911
Posted on: Wed, 15 Oct 2014 23:21:46 +0000
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