According to NASA's Goddard Institute for Space Studies (GISS), the global temperature for 2018 was 1.5 degrees Fahrenheit warmer than the mean global temperature for the years 1951-1980. NOAA found the average mean temperatures for the contiguous US was the 14th-warmest on record.
"The five warmest years have, in fact, been the last five years".
"2018 is yet again an extremely warm year on top of a long-term global warming trend", said Goddard Institute director Gavin Schmidt. This, according to scientists, is a result of the continuing warming trend caused by the excess emission of greenhouse gasses into the atmosphere.
Weather dynamics often affect regional temperatures, so not every region experienced the same degree of warming. Greenland ice sheets continue to suffer mass loss, which together with similar ice sheet loss in Antarctica, contributed to sea level rise.
A still image pauses the onslaught of warmer temperatures in NASA and NOAA data summarizing global climate changes.
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NOAA and NASA scientists say that in regards to global temperatures, the foot is on the accelerator.
The global climate record dates back to 1880, the year that it became possible to gather reliable and consistent temperatures around the Earth.
"People place way too much emphasis on a single year, usually to re-enforce a story, or a narrative, they have in their mind, already", he said. Instead, his administration is working to unravel Obama-era environmental rules in favor of policies that would allow more greenhouse gas emissions from cars, trucks and coal-fired power plants.
Also in 2018, the United States suffered 14 weather and climate disasters with costs surpassing $1 billion during a warmer- and wetter-than-average year, NOAA reports.
Britain's Met Office on Wednesday warned the 1.5C temperature increase limit agreed in Paris, compared with a pre-industrial baseline, could start to be exceeded far sooner than many predicted.
However, 2018 was actually cooler than 2015, 2016 and 2017.