CBC News Meteorologist Johanna Wagstaffe and University of Waterloo professor Blair Feltmate join Ian Hanomansing for an in-depth conversation on climate change and how extreme weather is changing our world. Welcome to The National, the flagship nightly newscast of CBC News »»» Subscribe to The National to watch more videos here: www.youtube.com/user/CBCTheNational?sub_confirmation=1 Voice Your Opinion & Connect With Us Online: The National Updates on Facebook: www.facebook.com/thenational The National Updates on Twitter: twitter.com/CBCTheNational »»» »»» »»» »»» »»» The National is CBC Television's flagship news program. Airing six days a week, the show delivers news, feature documentaries and analysis from some of Canada's leading journalists.