What you do on a dinosaur expedition is you hike and look at the ground. You find bones sticking out of the dirt and, once you see something, you dig.

For relatively modest amounts of sulfur dioxide injected into the atmosphere, you could easily cool Earth by 1% or more, if you want.

With cult foods, there is an underlying assumption that the best cooking ideas came generations ago. Yet culinary innovation is nothing to be ashamed of. When a chef tells me he is cooking with his grandmother's recipe, I always wonder why. Did talent skip the past two generations?

An efficient government is dangerous in the hands of the wrong man. Sadly, the right sort of man never seems interested in the job.

The simplest fix for better grilling is to line the inside of your barbecue with tin foil. It dramatically affects how evenly the heat is distributed. That crusty black hibachi or Weber grill is doing your food no favors.

I've been on a team that won the world championship of barbecue. But barbecue's interesting, because it's one of these cult foods like chili, or bouillabaisse. Various parts of the world will have a cult food that people get enormously attached to - there's tremendous traditions; there's secrecy.

One of the ugly secrets of the renewable-energy industry is that its products make no economic sense unless they are highly subsidized.