Dr. Mathews: How plant life adapts to more C O 2 is going to be interesting. Some people see it as a great benefit. That more crops will be able to feed the planet, not something we do particularly well right now. Simply that the forests and the other crops will simply adapt, grow quicker, and that the planet will take care of itself. That it has mechanisms in place to try to reduce drastic change. Certainly we expect certain plants to grow quicker and certainly some are going to be quite happy about the increased concentration levels of C O 2. We will wait and find out what happens. But again fascinating subject.