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Did We Do That? Thinking about Climate Change

Did We Do That? By THOMAS L. FRIEDMAN (October 28, 2007): We may have introduced enough CO2 emissions into Mother Nature’s operating system that we cannot determine anymore where she stopped and we started.

On target yet again, Friedman writes:

One should never extrapolate about climate change from any single weather event or season, but it does seem that we keep having more and more weather events and seasons that are modified with the words “since records have been kept” — as in the Los Angeles Times fire report on Monday, which noted that forecasters from the National Weather Service “couldn’t recall such intense winds in Southern California,” a region that meteorologists said was “already dealing with the driest year on record.”So a question has started gnawing at us as we observe events like Katrina and the California wildfires. I asked my friend Nate Lewis, an energy chemist at the California Institute of Technology, what is that question? He thought for a moment and answered: “Did we do that?”

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