The past decade was the hottest ever recorded, and the Earth's temperatures have been climbing steadily upward over the past 50 years.
The conclusion came in a report by the U.S. National Oceanic and Atmospheric Administration (NOAA) that measures global air temperatures over the oceans, sea-surface temperatures, the size of the glaciers, and so on.
Researchers say the results are not encouraging: our planet is getting warmer.
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