I just picked this up on a BBC news piece. There's a new website by a group called Carbon Monitoring for Action (CARMA) which has what it calls a pretty comprehensive database of power stations and power companies from across the world showing CO2 outputs right down to individual power station levels.

It's worth a play with. I was astonished to see Australia has the worst record in terms of CO2 output per capita from power generation. Interesting too to note that France is way down the list with the greenest output of industrialized nations because of its preponderance of nuclear generation, and Brazil is way down because of its heavy use of hydro power.

More locally - Drax is rated as the 23rd most CO2 producing power station on the planet, but Didcot is about as clean as they come powered by fossil fuels: