Expert fact-checks Senator Canavan's climate change doubts

The cost of climate change has been back in the spotlight post-federal election, with Nationals Senator Matt Canavan claiming "there's just not credible evidence that droughts or floods are getting worse in this country". But what do the facts say? Guest: Mark Howden, one of the Vice Presidents of the Intergovernmental Panel on Climate Change (IPCC) and a former director of the Australian National University's Institute for Climate, Energy and Disaster Solutions Producer: Brooke Youn