Activists all over the world have taken over city centres, demanding urgent action to halt climate change. They say we need to eliminate all carbon emissions by 2025. Most people think that’s impossible. But scientists are warning that if we want to stop global warming, we need to cut our CO2 emissions fast. So how soon can the planet achieve carbon zero?
Helen Grady speaks to:
Chukwumerije Okereke, Director of the Centre for Climate Change and Development, Alex Ekwueme Federal University, Nigeria
Mercedes Maroto-Valer, Director of the Research Centre for Carbon Solutions at Herriot Watt University, Scotland
Roger Pielke Jr, Professor at the University of Colorado, US;
Rachel Moncrief, Deputy Director at the International Council on Clean Transportation
Producer: Beth Sagar-Fenton
Will Case, like many farmers, is worried about climate change and uncomfortable about reports that farming is a key contributor to it. He wonders where his family farm which produces beef, salt marsh lamb, free-range eggs and milk on the edge of Morecambe Bay near Ulverston in Cumbria fits into the bigger picture of global heating. Caz Graham takes Mike Berners-Lee, a leading expert in carbon foot-printing to meet Will, look at his farm’s carbon footprint and discuss where UK farming sits in the context of global agriculture and climate change.