The push for more sustainable air travel

The pandemic saw a drop in airline greenhouse gas emissions. But as travellers return to the skies, advocates are calling for greater focus on decarbonizing air travel. Guest host Mark Kelley discusses the various ways to do that with Michel Chornet from Enerkem, a company that looks at developing sustainable aviation fuel; Suzanne Kearns, director of the Institute for Sustainable Aeronautics at the University of Waterloo; and Gideon Forman, the climate change and transportation policy analyst at the David Suzuki Foundation.