Climate change is real, case closed. But there's still a lot we don't understand about it, and the more we know the better chance we have to slow it down. One still-unknown factor: How might clouds play a part? There's a small hope that they could buy us some time to fix things ... or they could make global warming worse. Climate scientist Kate ...

If you've never heard of a McMansion, get ready for a crash course in gaudy, oversized home design. In this hilarious talk, Kate Wagner, creator of the blog McMansion Hell, roasts a few of these architectural eyesores, and discusses how builders and homebuyers can make better design choices with an eye to both sustainability and aesthetics.