Alyssa Gilbert and Ajay Gambhir are two experts from Imperial's Grantham Institute for Climate Change and the Envrionment who were in Paris observing the talks. Here they give their reaction and thoughts going forward.

What is our current understanding of greenhouse gas emissions released during the production of natural gas? How can we reduce these emissions? Dr Paul Balcombe discusses the context for the Sustainable Gas Institute's first White Paper.

Electrical engineer, Professor Tim Green gives his introductory lecture as Director of the Energy Futures Lab