I think we could look to Canada for all kinds of interesting examples of cases in which we have used innovative ways to protect wetlands.
In Ontario there has been phosphorus trading. Work on Lake Winnipeg is going on right now around the bioeconomy, basically helping with eutrophication, sort of baseline environmental quality stuff to reduce the impact and stresses on ecosystems.
There are lots of innovative ways to deal with this. Generally the approach to dealing with an environmental challenge is to use regulations. You can use economic instruments. Information is always a complement. In different thematic areas, under different environmental impacts, you have to look at the institutional context. You have to look at who the constituents are. Then you have to cobble together a program to address the issue. There really is no one-size-fits-all package of policies to address an issue.
If you look at climate change, for example, it is a really complex issue. A simple instrument cannot address pollution. You need complementary instruments.