It may feel cold outside right now, but NASA's new climate video helps you visualize how hot Earth is getting overall.
NASA's Goddard Institute for Space Studies (GISS) created the video, which colors the Earth based on air temperatures that rose or fell compared to historic averages. In 15 seconds, the video spans over 60 years of climate data from 1950 to 2013, and by the end, Earth is covered in hues of red and orange.
The increase in greenhouse gas emissions is directly responsible for rising global temperatures. Earth's average temperature increased 1.1 degrees Fahrenheit in 63 years, reaching 58.3 degrees.
If 1.1 degrees does not sound like much, consider that the planet's carbon-emission level is at its highest point in 800,000 years. Scientists have not recorded a year with cooler-than-average temperatures in 38 years, according to NASA. In other words, things haven't been getting colder overall since the Vietnam War ended, Muhammad Ali and Joe Frazier fought in Manila and Bill Gates started a company called Microsoft.
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2013 was a pretty warm year in the northern hemisphere — it ranked 42nd in the United States' continental climate history. But things were much hotter in the southern hemisphere: Australia recorded its highest average temperature, according to NASA.
GISS climatologist Gavin Schmidt said 2013 was another year that exemplified climate change.
"While one year or one season can be affected by random weather events, this analysis shows the necessity for continued, long-term monitoring," Schmidt said in a statement.
Data compiled from over 1,000 weather stations contributed to the video's production. Released last week, the video has already tallied 1.1 million views on YouTube.