From a policy perspective, over the last five years that I've been with the department, we've been having an increasing integration between science and policy, and that's reflective of what's happening in the international sphere as well. For example, the United Nations Environment Programme globally has put in place programs that try to integrate those two things more closely so that when the scientists are assessing the current state of the environment or the nature of policy problems that are coming up, the two sides of the equation—the problem and how you take action—are becoming much more closely aligned.
A good example of that is the work that's been done on what Louise referred to as “short-lived climate pollutants”, the non-carbon dioxide actors that are having a fairly significant effect on climate change, such as methane and HFCs. The work that's been going on between science and policy on that front is very closely linked. A discrete number of potential avenues where you get the most bang for the buck are identified by science, and the policy and regulatory folks have been working with the scientists on—