Ten warmest years on record are within the last 20 years. Sounds scary enough, but is still just a piece of statistics. The video on this page gives a much better impression of how much global temperature has changed. It's scary, really.

Ten warmest years on record are within the last 20 years. Sounds scary enough, but is still just a piece of statistics. The video on this page gives a much better impression of how much global temperature has changed. It's scary, really.
http://climate.nasa.gov/climate_resources/28/

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