Recent social media posts by The Climate Reality Project are featuring the National Oceanic and Atmospheric Administration (NOAA) one-minute video animation that tracks the relative amount of ice of different ages from 1987 through early November 2014.

According to NOAA, decades ago, the majority of the Arctic's winter ice pack was made up of thick, perennial ice. Today, very old ice is extremely rare.

Check out the video, produced by the Climate.gov team and based on data provided by Mark Tschudi, here:

YOU MIGHT ALSO LIKE

10 Foods That Could Disappear Because of Climate Change

It Wasn’t Only Exxon That Knew About Global Warming Since the 1970s

Michael Mann: How Close Are We to ‘Dangerous’ Planetary Warming?

15 Extreme Weather Events That Rocked the Planet in 2015