On The March: The Alarming Spread Of Invasive Species In Australia

Piers and bee-keeper activist Simon Mulvany dive into the spread of invasive species around the continent. We explore the devastating impact of the Varroa mite on bee populations, the algal blooms poisoning South Australia's coastline and the devastation of century old trees in Perth by the shot hole borer. There is now an urgent need for action to protect our unique and fragile ecosystems.