ECOSYSTEMS IN COLLAPSE2nd March 2020Presented by Vivien Langford from The National Climate Emergency Summit. Melbourne town hall.The speakers  are three top scientists:David Lindenmayer - Professor of Ecology at ANU on Forest conservationCharlie Veron- Marine  Scientist and world coral expert on a Noah's Ark scheme for coralsMichael Mann- Director of Earth System Science Pennsylvania State University, on Australia's extreme climate.Jo Chandler - Science journalist and author as Moderator.