John Oliver: The Earth, you may know it, as that blue thing Bruce Willis is always trying to save. Or from its famous collaboration with Wind & Fire. Or just simply as that place where George Clooney lives. Anyway, the Earth, had some genuinely bad news this week.
Reporter: A White House report that says global warming threatens every part of the U.S..
President Obama: This isn't something in the distant future. Climate changes are already affecting us now.
John Oliver: Now. Smart move, Obama. That is a key shift in how to talk about climate change. We've all proven that we cannot be trusted with the future tense. We've been repeatedly asked, "Don't you want to leave a better Earth for your grandchildren and we've all collectively responded, "Eh, fuck 'em." But, incredibly, this latest damning scientific report, may still face an uphill climb with some of us.
Reporter: There's that Gallop poll that came out last month which found 1 in 4 Americans is skeptical of all the effects of climate change and thinks this issue has been exaggerated.
Narrator: Who gives a shit. That doesn't matter. You don't need people's opinions on a fact. You might as well have a poll asking which number is bigger, 15 or 5 or do owls exist or are there hats. The debate on climate change should not be whether or not it exists, it's what we should do about it. There is a mountain of research on this topic.
Global temperatures are rising, heat waves are becoming more common, sea surface temperatures are also rising, glaciers are melting, and, of course, no climate report is complete without the obligatory photo of a polar bear balancing on a piece of ice.There may be small errors in this transcript.