At NEB hearings in Calgary today, City of Vancouver lawyers told the board they couldn't see the need for the pipeline any more with the low cost of oil.
A research team of scientists from the University of Alberta has traced a major cancer-linked pollutant to dust from huge black stockpiles left by oil sands companies.
Initiative will focus on two types of natural gas: methane and propane, which can be used in the manufacturing of fertilizers, plastics and other products.
New Brunswick's environment minister Brian Kenny is backing Energy East and a green future - but his Ontarian counterpart warns that time is running out as extreme weather closes in on Canada.