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Background context and overview
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Today's 2010 global average temperature increase from pre 1900: 0.8° C
Today's absolute commitment because of the ocean thermal lag (0.6°C): 1.4° C.
Today's commitment by the published climate change science: 2° C to 2.4° C.
National and international policy for global temperature increase limit: 2° C to 2.4°C