The NASA and NOAA reports are consistent with analyses by other governments, including the Japan Meteorological Agency and the European Union's Copernicus Climate Change Service, both of which also concluded that 2018 was the fourth-warmest year on record. Globally, 2018's temperatures rank behind those of 2016, 2017 and 2015.
Global surface temperatures have risen by about 2 degrees Fahrenheit since 1880.
"You get ups and downs - years that are a little bit warmer, a little bit cooler - but the long-term underlying trend is very, very clear", said NASA climatologist Gavin Schmidt, who worked on the space agency's analysis. From last year's devastating hurricanes and coastal floods to last week's polar vortex, scientists already have plenty of disastrous phenomena to hold up as immediately evident repercussions of manmade environmental damage.
"Increasing temperatures can also contribute to longer fire seasons and some extreme weather events".
It is official: 2018 was the fourth warmest year in recorded history.
The data indicate that global warming shows no sign of stopping.
The U.S. temperature in 2018 was the 14th warmest on average, said NOAA climate monitoring chief Deke Arndt. During the first one hundred years of NOAA registration (from 1880 to 1980) a new average temperature record was established every 13 years. Deathly record lows are real in the United States of America, but don't be fooled by the cooling that we have been witnessing, global warming is real also. Record levels of man-made greenhouse gas emissions, mainly from burning fossil fuels, trap ever more heat. That's 1.42 degrees (0.79 Celsius) warmer than the 20th century average.
In January, the same organization warned that levels of planet-warming carbon dioxide will rise by a near-record amount in 2019. Even though it is still highly likely those landmark temperatures will be surpassed in due time, the Paris accords were an global gesture of good faith to help protect our planet.
Hurricane Michael was responsible for $25 billion in damages, Hurricane Florence cost an additional $24 billion and the stretch of wildfires that scorched the western USA cost another $24 billion.