As delegates at the 2015 United Nations Climate Change Conference deliberate the next steps for how to approach climate change, a group of astronauts have recorded a message for them to urge action.
Eighteen astronauts recounted how their vantage point above the Earth have given them a unique view of the planet: they can see just what industrialisation has done to our atmosphere and environment.
Astronauts have always been particularly able to see the Earth for what it is: our home. The picture of the planet snapped by the crew of Apollo 8 would become a powerful symbol of the environmental movement, and as climate change becomes more of a threat, the astronauts who look down on the Earth can see just how rising global temperatures are affecting the planet.
Image credit: NASA
By Andrew Liptak