Climate Change

The world has made enormous progress in reducing air pollution and water pollution. This didn't happen because people just prefer to buy products that had lower air pollution footprints. It happened because we passed rules that said, you're not allowed to operate a factory that admits this kind of pollutent. Clenaract has added a year and a half to the life of an average american. And that was done almost completely without consumer preferences. But when we talk about doing a hard thing in the future, it's really helpful to think of what we've done in the past.