This is a key to a world map showing surface temperature trends between 1950 and 2014. Temperature trends range from -0.5 to +0.5 degrees celsius per decade, and are shown by color gradients:
Cooling trend: dark to light blue
No trend: white
Warming trend: light to dark orange
Czech version of english picture File:Key_to_world_map_showing_surface_temperature_trends_between_1950_and_2014.svg. 16 January 2015: NASA, NOAA Find 2014 Warmest Year in Modern Record, in: Research News. NASA Goddard Institute for Space Studies, New York, NY, USA. Accessed 20 February 2015.
NASA/GSFC/Earth Observatory, NASA/GISS (also see en:NOAA)