NASA announced Thursday that 2020 was likely the planet's hottest year on record, edging out 2016 by one-tenth of a degree Celsius. The temperatures were close enough to fall within the scientists' margin of error, so they considered it "a statistical tie." Average global temperatures in 2020 were 1.84 degrees Fahrenheit (1 degree Celsius) warmer than in the 30-year average between 1951 and 198