A fascinating show this week that focuses on the catastrophic level fire conditions and drought in Australia as climate change bites down-under. We interview fire expert Greg Mullins. Plus new science: A cleanup to save your health could quicken Arctic ice changes and heating around the world, with guest Dr. Ran Feng with the U of Connecticut.

Without action, Earth could warm 7 degrees C by the year 2100. French Senior Scientist Olivier Boucher explains. Then, in our second interview, rising seas are a sure thing now. Will we retreat in panic or plan our way out? Interview with expert Dr. A.R. Siders.