Heat map of the Earth. Watch 11 years of >10 million fires recorded by two NASA satellites, Terra and Aqua, condensed into a minute. Over 70% of the world’s fires were recorded over Africa, most caused by agricultural practices or lightning. USA, in contrast, had less than 2%. Data were recorded using MODIS (MODerate resolution Imaging Spectroradiometer) and shown as a heat map.

Info from: http://www.zmescience.com/ecology/climate/burning-fire-outer-space-22102011/