At this point, it would take outright denial to not realize how much climate change has put our world in crisis. Although projected increases in global temperature tend to sound small, the differences those few global degrees make can be devastating.
Between the UN report that at least a million different species are facing extinction and the way we've seen natural disasters get both more severe and more frequent, we're definitely closer to the endgame on this than we may have thought.
And as Bill Nye himself makes very clear in the full video, it's a game we can't afford to lose.
