2014: the Warmest Year Ever Recorded on Earth

Elly Rostoum | MIT Climate Change Blog
January 16, 2015

NASA and the National Oceanic and Atmospheric Administration, US agencies that maintains long-term temperature records, issued separate data compilations confirming that 2014 was earth's warmest year on record with average temperatures 0.07 degrees Fahrenheit above the previous high in 2000. In fact, average temperatures over land and oceans were higher in 2014 than any year since 1880, when record keeping began. 

This past December also had the third-highest average global land temperature—out of any December in the past 135 years—at 2.45 degrees Fahrenheit above average.

The warmest years on record are 2014, 2010 and 2005—indicating that global warming trends continue unabated. Indeed, February 1985 was the last time global temperatures fell below the 20th-century average for a given month. To pus this in perspective, today, no one younger than 30 has ever lived through a below-average month.
The 10 warmest years on record have all occurred since 1997, which underscores scientific warnings about the risks of runaway emissions and the profound impacts they have on the planet. Several scientists also noted that the most noteworthy factor about the 2014 record is that it did not witness an El Niño, a large-scale weather pattern in which the ocean dumps an enormous amount of heat into the atmosphere, reinforcing evidence of human-caused climate change. Read more on the scientific evidence of global warming at NASA’s Just Facts.
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