Michael Pollan

Meat is a mighty contributor to climate change and other environmental problems. The amount of meat we're eating is one of the leading causes of climate change. It's as important as the kind of car you drive - whether you eat meat a lot or how much meat you eat.

Oddly enough, government policy helped get the fast food outlets into the city. Very well-intentioned small business administration loans to encourage minority business ownership. The easiest business to get into is opening a fast-food franchise in the inner city.

Supplying fuel for a Mars expedition from the lunar surface is often suggested, but it's hard to make it pay off - Moon bases are expensive, and just buying more rockets to launch fuel from Earth is relatively cheap.

Having a Congress with a more diverse educational and professional background would serve the country well. And given the budget challenges facing America today, we might benefit from a few more cold, calculating problem solvers, and fewer courtroom impresarios.