The image of a gas-guzzling nation does not always hold true
BBC Radio 4's Crossing Continents was broadcast on Thursday, 9 February, 2006 at 1102 GMT.
The programme was repeated at 2030 GMT on Monday, 13 February, 2006
Julian Pettifer travelled to the US to tell the story of the unlikely new champions of environmentalism among the Evangelical Right.
Will they persuade the Bush Administration to introduce new policies on curbing emissions of greenhouse gases?
He also found out about the growing number of big corporations using renewable energy, and filled up a truck with "BioWillie", country music legend Willie Nelson's bio-diesel fuel.
Presenter: Julian Pettifer
Producer: Sue Ellis
Web Producer: Nathalie Knowles
Editor: Maria Balinska