I’m running another test of the settings of the plugin to send posts to facebook.
The figure provided with this test is a trend of satellite determined temperature variation for the lower atmosphere of the entire planet. The figure is published monthly. The temperature variation (or anomaly) is plotted as a temperature departure from the average value from January 1981 to December 2010.
The high peaks of the running 13 month average at 1998 and 2009 occurred from periods with strong El Ninos. The drop at the end of the figure corresponds to La Nina periods