Canwest News Service: Environmental activists are relieved by the indefinite shelving of an oil pipeline proposal that they say would make Ontario too dependent on “dirty oil” from Alberta and bring it to Quebec for the first time. However, activists with Environmental Defence and ForestEthics are concerned the project put on hold by Calgary-based Enbridge could be resurrected in the future. So they will go ahead Monday with the release of a joint report asserting the project would soon make Ontario …