Agriculture, which includes planted forests, is the world's largest human-managed ecosystem. There is a huge area of land that people manage for food, fiber and fuel - these are all marketed products with a value attached to them. What we want to know is if we can also manage agriculture for things that people like and appreciate, but don't have markets, such as cleaner air, cleaner water, less global warming, wildlife habitat and aesthetics - many people enjoy seeing the green, open space of farmland in their communities.
Scott Swinton