A Federal Court has upheld the decision to keep polar bears on the endangered species list, even though the amount of the arctic animal is currently about five times larger than it was in the 1970s. On its face, the fact may not seem very impactful, but Fox News legal analyst Peter Johnson, Jr. says it is.

"This is the touchstone of all climate change discussions," he told Fox and Friends Weekend host Clayton Morris. "It really depends on whether or not you believe global warming is real, whether you believe polar bears are threatened or not."

Get the backstory and the full details on the controversial issue: