oil spills

A researcher says the agency that monitors Alberta's energy industry has underestimated the impact of tens of thousands of spills going back decades.

The embattled National Energy Board has proposed new rules requiring pipeline operators to provide more information about how they would respond to emergencies.

Shell Canada was cleared to resume drilling one of two exploration wells off Nova Scotia after an accident in March that saw two kilometres of pipe break off a wellhead and sink to the ocean floor.

Report's release comes as Canada's oil producers clamour for ways to get their oil to market and industry critics sound alarms over the safety of moving crude via pipelines, train and tanker.

The City of Vancouver commissioned UBC professor to study potential impacts of major diluted bitumen leak to make their case against a proposed expansion of the Kinder Morgan pipeline.