2009: 2009 was the warmest year on record in the Southern Hemisphere (NASA).
Reference: NASA http://www.nasa.gov/topics/earth/features/temp-analysis-2009.html
Image Description: see case description. Credit: NASA. Image Location: NASA http://www.nasa.gov/topics/earth/features/temp-analysis-2009.html Image Permission: This image is a work of a United States federal employee, taken or made during the course of an employee’s official duties. As a work of the U.S. federal government, the image is in the public domain.