Greg Mullins, long-serving volunteer firefighter and former NSW Fire and Rescue Commissioner discusses his book, 'Firestorm: Battling Super-Charged Natural Disasters.' Greg describes the dire effects of human-caused climate change on bushfire seasons here…

Environmentalist, former Australian Greens Leader and Senator, Bob Brown on Uncommon Sense, ahead of La Trobe Uni talk 'Climate Change and Australia: Where to Now?'