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Nottingham, NH, United States
I'm a middle school science teacher at Nottingham and I love biology!

Monday, September 24, 2012

The Carbon Cycle Changes

The Carbon Cycle Changes:  The Carbon Cycle isn't static - it changes. During the Paleozoic Era, volcanic ash caused a big fluctuation in our climate and the Earth got warmer.  Global warming has happened before, but the Earth hasn't had such high levels CO2 to contend with.

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