Globe and Mail: The expansion of oil-sands operations and various pipeline proposals to get bitumen to market have incraseingly been topics of conversation in Canada, from debates in the House of Commons to discussions around the dinner table. Much of the discussion has focused around tangible things that we can see devastation of the Alberta landscape from surface mining operations, pollution of downstream rivers, the threat of pipeline spills, and the danger of accidents involving supertankers along the British...