Then a survey to the five political parties in Canada was circulated, including questions on protection of Canada's lands and water, clean energy, climate change, oil sands and toxic chemicals in consumer products. All parties except the Conservatives responded.

"The good news is that there is a fair degree of common ground among the parties that responded on issues that matter to voters, like tackling global warming and getting toxic bisphenol A out of our food cans," said Gillian McEachern of Environmental Defence. "We're disappointed that the Conservative Party did not choose to give voters information on where they stand on these issues."

Pembina Institute also released a comparison of party positions on carbon pricing, and a platform analysis for Conservatives, Liberals, Bloc, NDP, and Green Party.