Seattle and other US cities are going to get together at a major meeting this spring, to swap information and (some of the mayors hope) sign some kind of agreement. I think the goal is to get more than half the US population effectively into Kyoto compliance through their cities and counties.
http://www.iclei.org/us/ccp/More than half the states have action plans (some of them go further than Canada's, actually, which a lot of us up here are pressing our federal and provincial governments to look at).
http://yosemite.epa.gov/oar/globalwarming.nsf/content/ActionsState.htmlMy feeling is that Canada would be a lot further ahead if we had sub-national activity on global warming like in parts of the US. Ideally all levels of government would be clued in and working together, but I guess if I had to make a choice, a disinterested federal government and local jurisdictions that do, would be better than the other way around. Since many of these measures (e.g. planning/zoning, better public transportation, etc.) would have to be implemented at the local level to work in the long term, anyway.
My landlord works for the province of BC, and he is embarrassed that Washington, Oregon, and California have been making overtures on getting together to mitigate global warming (like the Maritime provinces and New England states did a couple of years ago) but his bosses in the neo-con BC government (influenced by Alberta-based lobbyists) are rebuffing them.