There's no doubt that climate change is here, and accelerating, and that it will have a big (and negative) impact on future generations. Sea level rise will cause the mass migration of millions (and a fair number of deaths.) Precipitation changes will increase flooding in some areas and reduce rain in other areas. Warming will increase droughts and wildfires. We will see mass extinctions, as we have every time we've had a rapid climate shift in the past. However, there are many things it is _not_. It does not mean the extinction of Mankind. It does not mean the end of life as we know it. It does not mean that most of the US (or even most of Florida) will be underwater by 2100. And the world will not end in 12 years. Climate change will not "force habitat construction upon us" in a way akin to "Noah's Ark." We will not reach an "extinction threshold." We will not see all the forests die. Such breathless predictions, although generally offered with the agenda of combating climate change denial, will tend to have the opposite effect - by predicting futures that never occur.