In the trade-off between agriculture and water quality, there are great trade-offs there, because a lot of the way we increase agricultural productivity is to increase fertilizer, and that has obvious implications for water quality. That's something we face every day, and certainly we've been applying.... There was the case that was mentioned before of the farmer who was applying more fertilizer than was needed simply because he didn't have a soil test.
The vast majority of our farms, because fertilizer is relatively cheap, are applying far more than they are taking up in crop production, and it's just sticking around. That's like a bucket of fertilizer uphill from all of our waterways, just waiting to get into our water quality. Over the last 50 years, we have set ourselves up for quite an issue with all of this phosphorus stored in our watersheds, just waiting for the big winter rains and the big spring storms to send a lot of eroded soil with a lot of phosphorus in it into our waterways.