I might just add briefly, from a policy standpoint, that emissions from the agricultural industry are fairly significant and contribute to the national total roughly 10%, I believe. Many of them are biological in nature. They don't lend themselves to being addressed by regulatory methods, for the most part.
Through the agricultural partnership, we do have programs in place to help producers identify opportunities to improve environmental performance. We have some incentive programs to help them effect changes. There are tools in place, and they've proven to effective over time at reducing the emissions intensity of the agricultural sector. I think there is scope for additional policy thought, in terms of another mix of tools and how one might most effectively encourage further reductions in those emissions.