Hot water
During a presentation of the two agencies' reports, Thomas Karl, director of Noaa's National Climatic Data Center, said there was a "considerable amount of area where we saw the record highest temperature observed, such as many portions of Europe and every ocean had parts that were [the warmest on record]".
Pacific Ocean
Data "very clearly" shows warming in the world's oceans, say the scientists
Australia was another nation to set record-breaking average temperatures.
But Dr Karl added that not all parts of the globe recorded temperatures above the long-term average.
"There were actually some areas that were cooler than average, particularly across some parts of the US that were much cooler than average," he observed.
"But that was overwhelmed by the far greater proportion of land and ocean areas that was much warmer than average or record temperatures.
"If you put it all together then it comes out as the warmest year on record."
Records stretch back to the late 19th Century when scientists began using scientific instruments to collect temperature data.
Today, as well as in-situ instruments recording information on the Earth's surface, satellites closely monitor temperatures across the planet.
During its review of extreme weather during 2014, the WMO highlighted a number of record-breaking events:
In September, parts of the Balkans received more than double the average monthly rainfall and parts of Turkey were hit by four times the average.
The town of Guelmin in Morocco was swamped by more than a year's rain in just four days.
Western Japan saw the heaviest August rain since records began.
Parts of the western US endured persistent drought, as did parts of China and Central and South America.
Tropical storms, on the other hand, totalled 72 which is less than the average of 89 judged by 1981-2010 figures. The North Atlantic, western North Pacific and northern Indian Ocean were among regions seeing slightly below-average cyclone activity.
Hot water
During a presentation of the two agencies' reports, Thomas Karl, director of Noaa's National Climatic Data Center, said there was a "considerable amount of area where we saw the record highest temperature observed, such as many portions of Europe and every ocean had parts that were [the warmest on record]".
Pacific Ocean
Data "very clearly" shows warming in the world's oceans, say the scientists
Australia was another nation to set record-breaking average temperatures.
But Dr Karl added that not all parts of the globe recorded temperatures above the long-term average.
"There were actually some areas that were cooler than average, particularly across some parts of the US that were much cooler than average," he observed.
"But that was overwhelmed by the far greater proportion of land and ocean areas that was much warmer than average or record temperatures.
"If you put it all together then it comes out as the warmest year on record."
Records stretch back to the late 19th Century when scientists began using scientific instruments to collect temperature data.
Today, as well as in-situ instruments recording information on the Earth's surface, satellites closely monitor temperatures across the planet.
During its review of extreme weather during 2014, the WMO highlighted a number of record-breaking events:
In September, parts of the Balkans received more than double the average monthly rainfall and parts of Turkey were hit by four times the average.
The town of Guelmin in Morocco was swamped by more than a year's rain in just four days.
Western Japan saw the heaviest August rain since records began.
Parts of the western US endured persistent drought, as did parts of China and Central and South America.
Tropical storms, on the other hand, totalled 72 which is less than the average of 89 judged by 1981-2010 figures. The North Atlantic, western North Pacific and northern Indian Ocean were among regions seeing slightly below-average cyclone activity.
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