An explanation about how vehicles produce particulate carbon as well as carbon dioxide. The clip describes the health problems associated with particulate carbon and also how carbon dioxide causes global warming. It states that 90 million grams of carbon are produced daily by the 184 000 cars entering London’s congestion zone.

This clip is from:
First broadcast:
18 November 2008

This could be an introduction to the effects that vehicles have on the environment. After watching it, students could be asked to name the health issues and the effects on the environment that arise from driving vehicles. Students could look into different forms of renewable energy and decide which would be the most efficient and safest to use.