Canadian Press: A group of 100 leading Canadian and U.S. scientists has issued an urgent call for a moratorium on new oilsands development and listed 10 reasons why no more projects should be permitted. "I believe we have a duty to speak up," said Mark Jaccard, an energy economist at B.C.'s Simon Fraser University who spent more than a year drafting a letter to make sure it was scientifically sound. Jaccard was a co-author of a 2014 essay in a scientific journal that made a similar argument. But the current letter,...