They say a lot of things.
The NDP is releasing a climate change plan that would allow provinces to opt out if their efforts to minimize carbon emissions are as good or better than those of the federal government.
The party says in its plan that money Ottawa would raise from carbon pricing would go to the provinces for reinvesting in further efforts to reduce greenhouse gas emissions.
Party leader Tom Mulcair, who is releasing his plan in Toronto on Sunday, has said Canada’s climate record has fallen behind under the Conservative government.
He has promised to create a cap-and-trade system and give any revenue generated from that to the provinces for their environmental programs.