Climate Change and Food Security
Background context and overview.
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