2017 was the second-hottest year on record, with the top three hottest years having been the most recent three, according to NASA.
The six hottest years have all been since 2010, while the 17 of the 18 hottest years on record have all been since 2001.
NASA said the findings “continue the planet’s long-term warming trend,” which can be attributed to greenhouse gas emissions caused by human activity.
“We are in a long-term warming trend, despite the ups and downs that we sometimes get on an annual basis,” Gavin Schmidt, director of NASA’s Goddard Institute for Space Studies, told reporters.
The Hill added:
NASA released its research jointly Thursday with the National Oceanic and Atmospheric Administration (NOAA). But NOAA uses slightly different methodology, so it concluded that 2017 was only the third-hottest year on record. Records go back to 1880 for both agencies.
NASA revealed that 2017’s average temperature was 1.62 degrees Fahrenheit above the 1880 to 1951 average. NOAA said the average 2017 temperature was 1.51 degrees above the 20th-century average.
President Trump and many in his administration are skeptical of the role human activity plays in climate change, and have expressed doubt about the scientific consensus that human-caused greenhouse gas emissions are the main cause of global warming. The administration has worked to undo nearly every climate change policy from the Obama administration.
Nevertheless, Schmidt and NOAA’s Deke Arndt said the process of compiling the report was no different than it was in previous administrations: without political interference.
“The analysis we conducted this year was conducted in the exact same way, the exact same amount of rigor, as it has been every year,” Arndt, chief of NOAA’s National Climatic Data Center, told reporters, noting he’s been there nine years.
Schmidt agreed, saying, “We’ve had no input from political appointees.”