"Just weeks after a TransCanada natural gas pipeline exploded and left thousands of residents without gas in sub-zero temperatures, a CBC News investigation uncovered a 2011 report, buried by federal regulators, that criticized the company “for ‘inadequate’ field inspections and ‘ineffective’ management.”"

"Environmentalists are declaring victory over an announcement by Ottawa that it will conduct a health review of 23 pesticides."

"EDMONTON - A new study released Monday suggests environmental assessments of oilsands projects have underestimated the impact of pollution, raising questions about the accuracy of data used as part of the approval process."

"WASHINGTON — The White House says a new environmental assessment from the State Department isn't the last step in deciding whether the Keystone XL pipeline can be built."

"ST. PIERRE-JOLYS, Manitoba — Several thousand people in southern Manitoba have been told that a pipeline explosion could mean they will be without natural gas service for up to several days as temperatures dip below zero."

"The National Transportation Safety Board called Thursday for federal regulators to take more aggressive steps to protect the public and the environment from oil spills and fires from trains."

"The groups are objecting to the approval granted Northern Gateway last month by the Joint Review Panel. The panel, which held 18 months of hearings into Northern Gateway, concluded the project posed little risk to the environment provided Enbridge complied with 209 conditions attached to the approval."

"EDMONTON - The study of how oilsands pollution is affecting the massive peatlands in the northeast will come to an abrupt halt this spring as two scientists found out last week their funding has been cut."

"VANCOUVER, British Columbia -- Five environmental groups are taking the Government of Canada to court today claiming that it has failed to meet its legal responsibilities under the Species at Risk Act to protect endangered wildlife threatened by the proposed Enbridge Northern Gateway pipeline and oil tanker route."

"TORONTO -- Canadian health officials said Wednesday a fatal case of H5N1 bird flu has been reported in Canada, the first such case in North America. The victim was travelling from China when symptoms first appeared."