First of all, it is renewable.
Second, there are impacts, such as on fish, but we do have a lot of regulation and measures in Canada that ameliorate the impacts.
The best example is that if we affect habitat, then we have to replace that habitat under the Fisheries Act no net loss policy. We have to put in, let's say, at least four times replacement habitat to deal with the risks.
So I think the kinds of impacts that do happen are dealt with, and there are no greenhouse gas emissions and air emissions.