The last five years were the hottest ever, NASA and NOAA declare

2018 was the hottest year yet behind 2015 2016 and 2017

2018 was the hottest year yet behind 2015 2016 and 2017

The National Oceanic and Atmospheric Administration's annual report was released Wednesday, coming to the same conclusion that also was reached independently by the NASA Goddard Institute for Space Studies. Temperatures for 2018 came in just behind the three years preceding it with 2016 ranking hottest year yet.

NASA and NOAA have announced that the global surface temperatures in 2018 were the fourth warmest since 1880.

The average global surface temperature has risen about 1 degree Celsius since 1880s, a clear signal that our planet is warming, according to NASA.

"This warming has been driven in large part by increased emissions into the atmosphere of carbon dioxide and other greenhouse gases caused by human activities", NASA said in a statement.

"We're no longer talking about a situation where global warming is something in the future", said Gavin A. Schmidt, who is the director of the Goddard Institute for Space Studies.

NOAA and NASA each analyze temperature measurements from thousands of sites around the world, including weather stations on land and ships and buoys spread across the world's oceans.

"What kind of planet is a planet that's four or five degrees warmer than it is now?"

This line plot shows yearly temperature anomalies from 1880 to 2018, with respect to the 1951-1980 mean, as recorded by NASA, NOAA, the Japan Meteorological Agency, the Berkeley Earth research group, and the Met Office Hadley Centre (UK).

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"The 20 warmest years on record have been in the past 22 years".

The records also show that the annual temperature of the Old Continent increased at an average rate of 0.12 Celsius degrees per decade since 1910, although it has nearly quadrupled to 0.43 Celsius since 1981. It's easy, if someone is skeptical to look at a hot year and say it's meaningless, we've been here before.

The Earth experienced its fourth-hottest year in more than 136 years in 2018.

This also means Toronto's temperature rose above the global average.

Arndt says 2018 "was an exclamation point, I think, on a trend that we're seeing toward more big rain, particularly in the eastern United States".

It appears highly likely, at least from today's perspective, that that line will be crossed, despite the fact that more than 190 countries have signed the Paris climate agreement, which sets targets for reducing greenhouse gas emissions.

WMO also released a report on Wednesday that the globally averaged temperature in 2018 was about 0.38 degrees Celsius above the 1981 to 2010 long-term average.

The nation's $1 billion disasters included hurricanes Florence and Michael and western wildfires that unfolded over several months.

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