Never in the historical record have such large areas of the country experienced such radically different temperature extremes as they have so far in 2014.

Earth’s hottest periods occurred before humans existed. Those ancient climates would have been like nothing our species has ever seen.

CarbonTracker is a tool for modelling sources and sinks of carbon dioxide. Users can download the code, carbon dioxide data, and the tool's carbon flux estimates to conduct their own analyses or to help improve the system.

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