To tackle global warming, we need to accurately know the scale of the problem that we are dealing with. As part of this effort, a team of NASA scientists set out to verify the accuracy of recent global warming figures which suggest, among other things, that 2015, 2016 and 2017 were the hottest years on record.
For the research of the study published in the journal Environmental Research Letters, scientists took measurements of the Earth’s surface temperature in different regions using a satellite-based infrared technology known as AIRS (Atmospheric Infra-Red Sounder) between the years 2003 and 2017.
They then compared these measurements to data on the air temperature two meters above the surface collected by weather stations around the world and analyzed by NASA’s Goddard Institute for Space Studies Surface Temperature Analysis (GISTEMP.)
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