The Earth Live Lesson series is a collection of 20-minute ‘explainer’
video lessons which explore a variety of conservation, biology, geography
and earth science topics. Click here to go to Lizzie’s YouTube channel!
Mary Gagen is a Professor of Geography at Swansea University, in the UK, currently on secondment as Chief Advisor for Forests with WWF. Mary is a climate change scientist and her research focuses on the past climate records stored in the rings of ancient trees, and on exploring how environmental change is impacting forests.