How to build your own sustainable house

WikiHouse enables people to design and build their own flat-pack homes. Aimed at tackling challenges in both developed and developing markets, could this be the future of housing?

What Americans really eat – and tweet

Laura Barton: A state-by-state analysis of the food-related words that Americans post on Twitter reveals some interesting trends about diet and health. Who knew that durian fruit was popular in Maine or flan on North Dakota?