Climate Change By Numbers‘, BBC Four programme, broadcast on 2 March 2015. Professor Leonard Smith and Dr Erica Thompson contributed to the making of the programme that aimed to clarify all the important questions around climate change by honing in on just three key numbers. The team behind the programme won the gold AAAS Kavli Science Journalism Awards AAAS Kavli Science Journalism Award 2015 in the category of ‘In-Depth Reporting’. The judges said that the team ‘used clever analogies and appealing graphics to discuss three key numbers that help clarify important questions about the scale and pace of human influence on climate.