2014 was Earth's hottest year on record

Story highlights

  • Average temperature over land, sea in 2014 was 1.24 F above 20th-century average
  • "This was the highest among all 135 years in the 1880-2014 record," report says

(CNN)2014 was the Earth's warmest year on record, a U.S. weather agency announced Friday, with average temperatures 0.07 degrees Fahrenheit above the previous high.

The National Climatic Data Center, a division of the National Oceanic and Atmospheric Administration, noted the average temperatures over land and oceans were higher in 2014 than any year since 1880 when record-keeping began.
    Last month also had the third-highest average global land temperature -- out of any December in the past 135 years -- at 2.45 degrees F above average, according to the agency.
      The announcement marks the third time the past decade has produced record-setting warmth on an annual basis.
      But 2014's warmth was historic, and it surpassed the prior records in 2005 and 2010, the agency said.
      When 2014 is compared with the 20th-century average, the margin is much greater: Last y