Man oh man. (Photo by Shutterstock.)

The most extreme climate “alarmists” in U.S. politics are not nearly alarmed enough. The chances of avoiding catastrophic global temperature rise are not nil, exactly, but they are slim-to-nil, according to a new analysis prepared for the U.K. government.

Remember, climate change is simple. We’re trying to avoid temperature rise of more than 2 degrees Celsius above pre-industrial levels, because anything over that risks severe, irreversible, and overwhelmingly negative impacts. Currently we’re around 0.8 degrees above historical levels. If current trends continue, we could hit up to 6 degrees by 2100. That would likely exceed our ability to adapt, which is a polite way of saying it would lead to massive human die-off. That, in a nutshell, is (as I like to say) the brutal logic of climate change.