Lewis Ziska (Ph.D., plant physiologist, Agricultural Research Service, U.S. Department of Agriculture) came to Health Journalism 2009's "Effects of global climate change on health" panel to deliver a presentation titled "Lewis Ziska: Climate change, CO2 and public health: The botanical perspective." In it, Ziska discusses how CO2 effects plants and how thus plants thus affect public health, through allergens, contact, dermititis, nutrition and medicinal uses.
