Elizabeth Evans May OC MP (born June 9, 1954) is a Canadian politician. May is leader of the Green Party of Canada and Member of Parliament for Saanich—Gulf Islands. An environmentalist, author, activist, and lawyer, May served as the Executive Director of the Sierra Club of Canada from 1989 to 2006.While May's family home is in Margaree Harbour, Cape Breton Island she moved her permanent residence to Sidney, British Columbia in 2010.