candidate: [[ Image :3 examples of internal climate variability ( 1950-2012 ) , the El Niño – Southern Oscillation , the Arctic Oscillation , and the North Atlantic Oscillation ( NOAA ) .png | thumb | right | alt = Refer to caption | This image shows three examples of internal climate variability measured between 1950 and 2012 : the El Niño – Southern oscillation , the Arctic oscillation , and the North Atlantic oscillation .