Kai Ryssdal: Much of the discussion in Copenhagen is going to be about rich countries versus poor. Developed economies versus those that are still developing. Who's going to cut their emissions? By how much? And just plain -- how. How are they going to do it? Japan offers some pretty good lessons. From KQED, Rob Schmitz reports.

ROB SCHMITZ: Meet the Sakaki family: dad Hiroshi, mom Yukiko, and three year-old daughter, May.

The Sakakis have a heater in their home, but they prefer to wear sweaters. Their power strips have individual on/off switches so their appliances won't waste energy. They only buy energy-efficient lights. Each night, they share bath water. Their bathtub talks to them. It warns them when they're wasting energy.

Source: Marketplace

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