Global temperature anomalies from 1880 to 2017

Earth’s global surface temperatures in 2017 were the second warmest since modern record-keeping began in 1880, according to an analysis by NASA. Continuing the planet’s long-term warming trend, globally averaged temperatures in 2017 were degrees Fahrenheit ( degrees Celsius) warmer than the 1951 to 1980 mean, according to scientists at NASA’s Goddard Institute for Space Studies (GISS) in New York. That is second only to global temperatures in 2016. Last year was the third consecutive year in which temperatures were more than 1.8 degrees Fahrenheit (1 degree Celsius) above late nineteenth-century levels. NASA’s temperature analyses incorporate surface temperature measurements from 6,300 weather stations, ship- and buoy-based observations of sea surface temperatures, and temperature measurements from Antarctic research stations. These raw measurements are analyzed using an algorithm that considers the varied spacing of temperature stations around the globe and urban heating effects that could skew