I can't give you the answers on the economic impacts of climate change. Where our council and province have been at is that the changing climate is allowing species.... Even on the horticulture side, they're regrouping the grow zones in the eastern states. The same thing is going to happen in natural ecosystems and to invasives. So the ability of invasives to spread more rapidly....
I come from an interior town. We get minus 30 in the winter. English ivy and giant hogweed don't grow there. But 20 years from now there will be a huge ability for it to grow there. So prevention becomes even more important, because what was invasive in the south of the province can now easily.... Predicting where climate warming could go, we could be expanding the ranges for the aggressive invasive plants to be aggressive in my area.
With cold winters, we rule out a lot of the species. You see that when we're working with the Yukon and the Northwest Territories: they've got 12 or 15 invasive species on their list. That's all they've got because their winters kill off their plants. With climate change, with warming climates, they're going to have the potential for more invasive species having an environmental impact, which then will trigger an economic impact back to the habitat issues for wildlife that you mentioned.
I'd like to add one other comment. The other work on invasive plant impacts is around carbon sequestration, which is a big issue in Canada and B.C. The research is taking a look at the fact that healthy ecosystems, healthy grasslands, sequester more carbon than areas where knapweed or whatever is rapidly growing. That information is also going to be really important as they finalize that. The States are also doing research around the same thing. Those ticket items from the impact of climate change and even carbon sequestration appear to be aggravated by invasive plants, which already have advantages. They're aggressive. they spread rapidly, and people move them. You add those factors, and they'll become a more rather than less serious issue.