Here in the States, garbage--and where to put it--is a major problem. But in many countries, especially in northern Europe, it's a precious commodity. Oslo, the capital of and most populous city in Norway, gets about half of its energy from burning garbage. It's so efficient that plants have lately starting importing garbage from Sweden, Italy, and the UK, and they're even eyeing the US market. Why? Because they're running out of garbage in their own country.