Carbon dioxide

Letter from America by Alistair Cooke. Trilbies are Fashionable Again! Audio, 15 minutes
With a new trilby at the ready, Alistair Cooke considers the problem of CO2 emissions.
Attribution
BBC Radio 4
Available for over a year
Science View. Global Warming in UK. Audio, 4 minutes
Monitoring and reducing CO2 emissions in the UK
Attribution
BBC World Service
Available for over a year