Sockeye salmon in one of Canada's key but troubled fisheries on the Pacific Coast may have a genetic flaw that makes them more susceptible to disease, according to a study released on Thursday.

Researchers have found a genetic profile in some of sockeye in British Columbia's Fraser River that indicates some are more likely to die before they are able spawn, according to the study published in t

British Columbia is still committed to promoting clean energy projects despite taking a blow on Tuesday from its own power utility regulator, the Canadian province's energy minister said in an interview with Reuters on Wednesday.

Canada's rules for cutting greenhouse gas emissions may not come into effect by 2010 as had been planned, Environment Minister Jim Prentice said on Thursday.

The rules may be ready by next year but the implementation timing will depend on discussions with other countries -- including the United States, Canada's largest trading partner-- for economic competitiveness reasons, Prentice said.

Canadian National Railway pleaded guilty and paid fines to settled environmental charges stemming from two high-profile derailments in Western Canada, officials said on Monday.

Ottawa will help Canadian pulp producers struggling with a U.S. tax windfall awarded their American rivals, but has not decided yet what form the aid will take, Natural Resources Minister Lisa Raitt said on Thursday.

Canada has overstated how effective its efforts to cut greenhouse gas emissions will be, the country's top environmental watchdog said Tuesday.

The government has also not set up systems for accurately monitoring reductions in greenhouse gases or where the emissions are coming from, according to Commissioner of the Environment Scott Vaughan.