Friday, August 28, 2009

Climate change: not just for crunchy liberals and nerds anymore

While the sane/intelligent/non-comatose population has been well aware of the climate change thing for years, the rest of us are finally starting to come around. It's hard (but apparently not impossible) to ignore the physical evidence that the global climate is changing. Yeah, yeah, it does that on its own....well, not like this. Sorry to have to tell you this Bush Administration, Michael Crichton, Senator James Inhofe of Oklahoma, Glenn Beck, the rest of the yahoos at Fox News, and 41% OF AMERICANS (!!!!)....but you are all craaazies.

I could rant/yell/spout statistics for days and days about how ridiculous it is that we are even arguing about this, instead of doing something about it. But I won't. I will simply point out a couple of FACTS that the crazies are going to be hardpressed to ignore/refute/conspire against.

So, basically, scientists went to Antarctica and analyzed air pockets in ice cores dating back to 800,000 years ago. They found (spoiler alert) that carbon dioxide was at significantly lower levels back then. That's statistically significant. Which is like, science. In fact, they found that the CO2 levels are higher right this very second than they ever were during any of those previous 800,000 years. "Hmm," you might think, "I wonder what was happening in that general time period." Only the emergence/expansion/explosion of a dominant group of organisms in the genus Homo. Oh wait, wait, that was us.

For a cogent/fascinating/eloquent explanation of the issues we face due to rising carbon dioxide levels, I recommend The Next One Hundred Years, by Jonathan Weiner. This guy won a Pulitzer (for a different book, but still), and does an excellent job of explaining the problem with having too much carbon floating around. In a nutshell: for a long time, the CO2 level held steady around 315 parts per million. During the mid twentieth century, it started creeping up. And by creeping, I mean skyrocketing. See:

It is currently at 389 ppm, a 25-ish percent increase. In 50 years. Holy. Crap. High levels of CO2 lead to ocean acidification, inhibition of plant growth, extreme weather events, sea level rise, species extinctions, and of course, global temperature increase. D'oh! Did I mention that this book was written in the scientific yesteryear of 1991? We've known about this for decades, and we are still arguing about whether or not it's real. Come on, crazies, we've got enough to worry about.

If you're not much of a reader, and all this carbon talk is like Greek (or Latin I guess, which is what it is), there are pictures, too! Believe it or not, there are satellite photos of this stuff. They were actually classified by the Bush Administration, and then Obama came in and was like "What? That's dumb." And he declassified them. So here, for your viewing pleasure, are satellite images taken one (1) year apart (!) of ice melt in Alaska.

See that big, ominous dark spot on the right-hand picture? Just one (1) year before that, it was full of happy/sparkly/crystally ice, as you can see in the left-hand picture. And now it's gone. Ignore that, bitches! Science 1, Crazies 0, Earth, totally screwed.

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