NOAA, NASA: 2015 was hottest on Earth by a wide margin

WASHINGTON (AP) — Last year wasn't just the Earth's hottest year on record — it left a century of high temperature marks in the dust. The National Oceanic Atmospheric Administration and NASA say 2015 was by far the hottest year in 136 years of record keeping. NOAA says 2015's temperature was...

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              FILE - In this Aug. 15, 2015 file photo, pedestrians walk past a digital thermometer reading 113 degrees Fahrenheit in the Canoga Park section of Los Angeles. Earth last year wasn’t just the hottest year on record, but it left a century of temperature high marks in its hot dust. The National Oceanic Atmospheric Administration (NOAA) and NASA announced Wednesday, Jan. 20, 2016, that 2015 was by far the hottest year in 136 years of record keeping. (AP Photo/Richard Vogel, File)

WASHINGTON (AP) — Last year wasn't just the Earth's hottest year on record — it left a century of high temperature marks in the dust.

The National Oceanic Atmospheric Administration and NASA say 2015 was by far the hottest year in 136 years of record keeping.

NOAA says 2015's temperature was 58.62 degrees Fahrenheit (14.79 degrees Celsius), passing 2014 by a record margin of 0.29 degrees. That's 1.62 degrees above the 20th-century average. NASA, which measures differently, says 2015 was 0.23 degrees warmer than the record set in 2014.

Although 2015 is now the hottest on record, it was the fourth time in 11 years that Earth broke annual marks for high temperature.

Scientists blame a combination of El Nino and increasing man-made global warming.

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