global map of local climate change

Robert Vanderbei has published a new paper describing a computer program that allows one to analyze data from a specific weather station to detect whether the local climate has changed. First he applied the model to data from a local New Jersey weather station, which showed that temperatures have gone up in that area by about 2F over 55 years. Then for fun (Vanderbei remarks in the paper) he fed that same computer model data from thousands of local weather stations across the world over the same time period. The result was a global map, which you see above, that shows climate change at the local level.

The paper appears in the current issue of SIAM Review. Vanderbei is a professor of operations research and financial engineering at Princeton.

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