You can believe NASA and you can believe what their satellites measure on the planet, or you can believe the Senator with the snowball. The United States Navy takes this very seriously, to the point where Admiral Locklear, who is the head of the Pacific Command, has said that climate change is the biggest threat that we face in the Pacific… you can either believe the United States Navy or you can believe the Senator with the snowball… every major American scientific society has put itself on record, many of them a decade ago, that climate change is deadly real. They measure it, they see it, they know why it happens. The predictions correlate with what we see as they increasingly come true. And the fundamental principles, that it is derived from carbon pollution, which comes from burning fossil fuels, are beyond legitimate dispute… so you can believe every single major American scientific society, or you can believe the Senator with the snowball.

—Sheldon Whitehouse
Climate Skeptic Senator Burned after Snowball Stunt