Katherine McKenna is trained as a human rights and social justice lawyer. 
She was a senior negotiator in East Timor which culminated in the Timor Sea Treaty providing for the joint exploitation of PETROLEUM resources in a part of the Timor Sea. She is also a lecturer at the University of Toronto's Munk School of Global Affairs.
McKenna has practised law focusing on international trade, competition, investment and constitutional issues. In 2002, she joined Stikeman Elliott LLP, working in the areas of competition, trade, and constitutional law. During this time she was senior counsel on the Right Honourable Antonio Lamer’s review of Canada’s military justice system.

She is as unqualified in climate science as David Suzuki and Al Gore. Is she, we may ask, one of Trudeau's appointees who was chosen not on the merit of her lack of qualifications but, since it's 2016, because of her gender?

She knows exactly nothing about the climate science. Listening to her claptrap is a waste of time.