Greenland from space: Sea ice, snow, and global warming
...the reason is very, very clear; global warming, caused by human activity.Flashback: Another Moonwalker Defies Gore: NASA Astronaut Dr. Buzz Aldrin rejects global warming fears: 'Climate has been changing for billions of years' | Climate Depot
To be frank: there is no scientific controversy over this. None. The only arguing that’s being done is politically and ideologically driven, and we are way, way past the time when the conspiracy theorists and political climate change denial zealots should be taken seriously. They are in the same category as antivaxxers, creationists, and Apollo Moon landing deniers: The evidence is firmly against them, and all they can do is make noise and pollute the discourse.
Moonwalkers Defy Gore's Claim That Climate Skeptics Are Akin To Those Who Believe Moon Landing was 'Staged'