Thank you, Mr. Chair.
Mr. Fisher, Mr. Thomas, and Mr. Anderson, for the sake of clarity, I'd like to clarify something. With all due respect, I studied sustainable landscape management at UBC. I made many visits to the valley and to Chilliwack and other valley towns. I studied in that environment, and I want to clarify the basic science of surface hydrology and the role of riparian corridors, because I've heard a lot about farmers' ditches for the past couple of months.
Ditches act as first-order streams, whether they're man-made or natural. First-order streams flow into second order and they flow into third order, and eventually they reach deltas at the ocean. If you look at a satellite picture of the Fraser delta, you'll see massive siltation at the outlet of the delta.
Now, people will ask, “So what?” Well, any runoff that goes into those ditches increases siltation in a river, and the silts reduce the oxygen in that river. The reduction of oxygen reduces the capacity of a river to carry aquatic life—plain and simple. That's the plain science of surface hydrology.
The Fisheries Act leads to the protection of those riparian corridors because it recognizes that surface runoff reduces a river's capacity to carry life and fish. Mitigation such as hedgerows—or gravels, as you mentioned—helps the process, but if you remove these acts and the incentive to protect fish, some farmers will cut costs, and they will not take on the extra costs to do the mitigation measures. So this act is actually protecting the whole system.
A farmer knows their land well. I wouldn't want to say they don't. But it's a system. They're part of a system. A lot of farmers want to use all of their cultivable land. It makes economic sense. You want to increase the productivity of your land, but by doing hedgerows and by taking mitigation measures, you're protecting fish, which protects that industry.
Now, that's science. It's not manipulation, such as the government is doing in using language and perceptions to turn people against science. So I'd just like that clarified.
My question is actually for Mr. Hazell. Changes in Bill C-38 mean that cabinet now can overrule the National Energy Board's decision. Do you think the decision-making should be based on science, or is allowing big resource developments to be decided on a political whim a good idea?