NDP MP Megan Leslie asks a question during Question Period in the House of Commons in Ottawa on Wednesday, June 3, 2015. Megan Leslie, the chief executive of the World Wildlife Fund - Canada, said during the forum at the MacEachen Institute of Public Policy and Governance, that while there are "extreme outliers" among political parties on the issue, efforts must be shift opponents from denial to discussion. THE CANADIAN PRESS/Adrian Wyld