The way things are going, we can expect global warming to wipe out humanity in the next few years. Or never, it's not completely clear. So why dwell on negatives like drowning deaths and widespread panic? There's a bright side of our impending doom to look forward to and plenty of good things catastrophic climate change may bring to you (and the environment).
6It Could Delay a Far Worse Ice Age
In general, humans do better in extreme heat than extreme cold--a lot more of us live around the warm equator than the frigid poles. So it makes sense that global warming wouldn't be nearly the disaster that, say, a new Ice Age would be. Especially when you take into account the fact that we've yet to find crops that like to grow under three feet of ice.
A new Ice Age isn't the stuff of science fiction, either. These cooling periods have happened at least four times that we know about, caused by slight changes in the Earth's orbit around the Sun that happen from time to time. It's a regular cycle. Our current warming is not, however, part of that cycle. Right now we should be cooling down, but thanks to those brave souls who refuse to give up Hummers, make margaritas with diesel-powered blenders and drive their hovercrafts to get the daily mail, we're not. This may not be all bad news, if the warming will wind up delaying or blunting the effects of the next Ice Age, as some experts think it will.
Maybe it will at least stop this one.
On the Other Hand...
Of course, some might call this a draw as we may be trading an Ice Age for living on an overheated desert planet where everyone has to wear suits that make us drink our recycled pee and take sandworms to commute to work in the Spice mines where our boss is Sting in a Diaper.
In other words, the Earth doesn't have a thermostat that we can adjust up or down one or two degrees to keep us comfortable. What we humans need is as little change as possible, and we could be setting up a situation where we spend the next few centuries adapting to a warmer world and cutting greenhouse emissions, only to then get sucker punched by the next Ice Age when it eventually arrives.