| Mon Jan. 11, 2010 9:57 PM EST
Here's a cool video showing water's tipping point between freezing and thawing. It's fascinating on its own account. It's also loaded with climate metaphor, especially during this snowy winter, the likes of which must surely have kicked off past tipping points between climate warming periods and climate cooling periods. As in, the Little Ice Age. Or the ice age that froze Europe in only months 12,800 years ago.
It can all change so fast.