building in a bag

Take one sack impregnated with cement, add water, inflate, and wait 12 hours. Result: one instant building. No sugar added.

That's a news item from 2005, but it's an engineering innovation too cool to ignore. What's it got to do with carbon? Not much, but if we're going to be experiencing more extreme weather, it's the perfect solution to house people displaced by flooding or other weather-induced emergencies. Adaptation is one aspect of a comprehensive response to climate change.