Global temperatures rose 1.5 degrees Fahrenheit (0.83 degrees Celsius) than the mean of warming from 1951 to 1980. Normally, the yearly NASA and NOAA announcements come out around the same time as the others', but this year's reports were delayed due to the partial USA government shutdown.
USA government scientists have announced that the Earth's average temperature was the fourth hottest on record in 2018.
According to NOAA, 2018 was Arizona's second warmest year ever recorded, one of a dozen states with similarly high temperature averages.
Gavin Schmidt, a climate scientist at NASA, says the message is clear: "The planet is warming".
The warming is driven largely by the continued emission of carbon dioxide and other greenhouse gases into the atmosphere by human activity, such as manufacturing, coal-fired power plant emissions, and deforestation.
"The impacts of long-term global warming are already being felt - in coastal flooding, heat waves, intense precipitation and ecosystem change", says Schmidt.
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Air and sea surface temperature data from 6,300 weather stations, ship and buoy observations, and temperature measurements from Antarctic research stations were analyzed. The NOAA data ranks 2018 as Australia's third warmest year since 1910.
The text written by the USA institutions also highlighted that much of Europe, New Zealand and Middle East regions, as well as Russian Federation, recorded higher temperatures on land, while areas of the South Pacific Ocean and the North and South Atlantic also suffered maximum temperatures in the sea surface.
If Toronto felt warmer than usual a year ago, it's because it was. NASA said it's happening and will continue to happen for years to come.
Weather dynamics often affect regional temperatures, so not every region on Earth experienced similar amounts of warming.
The hottest year was 2016, and the top five years are the years starting from 2014.
In addition to the temperature records, the USA suffered $91 billion in direct losses from extreme weather events in 2018, the fourth most since 1980, Ardnt said. Taalas said that the deadly cold snap was entirely consistent with the effects of manmade climate change, including the warming of the poles. NOAA's analysis found 2018 global temperatures were 1.42 degrees Fahrenheit (0.79 degrees Celsius) above the 20th century average. Right behind Michael were the western USA wildfires and Hurricane Florence, which both racked up $24 billion in damages, according to NOAA.