GISTEMP
Founded in 1961, the Goddard Institute for Space Studies (GISS) is a NASA research institute based in New York. Since the 1980s, GISS has been counted among the word's leading research centres on modelling the atmosphere and climate research, with climate projections for the 21st century being among its key fields. In addition, under the aegis of the long-time director, James E. Hansen, analyses of global surface temperature variations have been developed from various data sets since the 1970s, which constitute a valuable contribution to the exploration of climate change.