WASHINGTON - Canada's environment minister is wrapping up two days of talks with environmental officials in Washington confident the two countries can work together to fight climate change.

Jim Prentice says his meetings were `positive' and `productive' and that Canada and the U.S. will continue to talk about ways to produce clean energy.

One of Prentice's thickest policy files pertains to Alberta's oilsands, a controversial Canadian source of fossil fuel that critics consider a blight on the environmental landscape.

But he says the oilsands came up `only tangentially' in his discussions.

With the U.S. exploring ways to cut back on carbon emissions, the pressure is on Canada - the single largest supplier of American energy - to do something about the impact of the oilsands on greenhouse gas levels.

A new poll, meanwhile, suggests a majority of Canadians outside Quebec believe the benefits of the oilsands outweigh the drawbacks, while about one-third of respondents say the opposite.