Global temperatures. Supercomputer simulation of global temperature, produced using NASA's Goddard Earth Observing System-5 (GEOS-5), and shown on a cylindrical projection of the Earth's surface. The surface temperatures are coloured, ranging from 270 to 310 Kelvin. The hottest areas are the deserts of North Africa and the Middle East (centre). Outgoing long-wave radiation at the top of the atmosphere (white) represents clouds in the model. This visual is part of the simulation 'Nature Run' (2005-7), produced with the Discover supercomputer at the NASA Center for Climate Simulation. Image published in 2013.