Forests - Deforestation and Desertification, Soil Erosion and Degradation, Ground Pollution, Sustainable Forest Management, Reforestation, National Parks
Energy - Fossil Fuels and Dirty Energy Renewable and Clean Energy, Nuclear Energy, Energy Efficiency and Conservation, Alternative Fuel Vehicles
Niall McCann talks to elephant biologist Joyce Poole about her career studying elephant communication and a lifetime of research in east Africa.
