So how do you wind it back and how do you work with the local communities to do it? Well, you actually do need a combination of local regulation, national guidance for that regulation, farmer input, and investment by farmers but also investment by central government, and we're investing hundreds of millions of dollars in the clean-up from taxpayers' money, and those taxpayers weren't the people who caused the mess. So we're coming to the party and we're planting out riparian strips, we're subsidising catchment management groups, and we're employing facilitators so that groups of farmers can come together and share best practice and put a bit of peer pressure on the ones that are the laggards. We're doing all of that, but you do need some national direction. 