Opponents to Quebec's Rabaska natural liquid gas terminal are urging the province to cancelthe multimillion dollar development.

A coalition of environmental groups joined opposition politicians on Monday to blast a recent report from Quebec's environmental board BAPE endorsing the Rabaska Natural Gas Terminal project even as it cautioned the plant would generate high levels of carbon dioxyde emissions.

"It was a mistake to send this project to BAPE [hearings]," said former Quebec Environment Minister Thomas Mulcair, in an interview with CBC's French language service.

"It's not a question of being against development, against progress, but we are still far away from proving why we should accept Rabaska."

The $860-million terminal, to be built in Lévis just downriver from a previously approvedterminal project andright across the St. Lawrence from Quebec City, would include two 15-storeystorage tanks for liquid natural gas.

That should cause more concern, said Mulcair, who is now a federal NDP candidate.

"Right there, in front of Quebec City, in front of the Ile d'Orleans, in a narrow part of the St.Lawrence river — I can't explain why," that's a good idea, he said.

BAPE recommended the province take steps to offset the CO2 emissions by cuttinggreenhouse gas production in other industries.

That measure does little to safeguard some 700 residents, and the fauna and flora in the area chosen for the terminal, said Jacques Levasseur, a member of the Lévis Environmental Protection Association.

"The BAPE was only repeating what it heard in the [public] audiences, without ever giving strong direction to protect the environment and the people," he told CBC News.

Levasseur and the other 60 environmental and civic groups are asking the Quebec government to quash the project.

Current Quebec Environment Minister Line Beauchamp said she's willing to meet with the project's opponents.