 Here to help us is Dr. Elizabeth Hanna. She's a nurse with a doctorate and national convener of the Climate Change Adaptation Research Network for Human Health at Australian National University. We've reached Dr. Hanna in Warsaw at the COP19 Climate Talks. Welcome to Radio EcoShock. And hello and hello to your listeners. Liz, let's get to your specialty, the capacity of the human body to cope with climate change. What are the challenges that we will face?