Tracking coronavirus spread

The appearance of Covid -19 in Italy and Iran surprised many this week. As the virus continues to spread we look at ways to contain it. Australia’s fires have burnt around 20 percent of the countries woodlands, what are the implications for the recovery of those ecosystems? And what is the link between the world’s super rich and deforestation? Unsurprisingly it’s money. And we hear about the unexpected cooling effects of hydroelectric dams. (Image: Tourists wearing masks tour outside the Coliseum in Rome. Credit: Getty Images) Presenter: Roland Pease Producer Julian Siddle.