Climate Central: As negotiators at the latest global climate meeting gather this week in Lima, Peru, to hammer out a new international agreement to limit emissions of the greenhouse gases fueling global warming, they are receiving a stark reminder of that warming.
Global annual average temperature anomalies (relative to the 1961-1990 average) for 1950-2013, based on an average of the three data sets from NASA, NOAA and the U.K. Met Office. The January-to-October average is shown for 2014. The colouring of the...