The average emissions figure for new cars sold in 2011 was 138.1g/km CO₂, equivalent to 52.5mpg; this is 4.2% lower than the previous year, and more than 23% lower than when reporting began in 2000.

London’s new Low Emission Zone (LEZ) comes into effect on 3 January 2012 which requires larger vans, minibuses and other specialist diesel vehicles to meet ‘Euro 3’ emission standards.

‘One Tonne Life’, a collaboration project between A-hus, Vattenfall, Volvo Cars and other partners, has shown that households could reduce their carbon output from 7.3 tonnes to a stable 2.5 tonnes per person.

Volvo reduced the CO2 emissions of its cars more than any other manufacturer in 2010, with a 13.8% drop in just one year.

Transport Secretary Philip Hammond has committed an additional £5m funding to the Mayor of London Boris Johnson to help improve air quality in the capital.

Ever wondered what the CO2 impact is from the logistics used to transport goods to you? – well, now there is guidance on how to calculate this.

Camden has become the first council in the UK to launch a fleet of vehicles powered entirely by renewable energy.

There has been a 21% reduction in the carbon dioxide (CO2) emissions of class-leading green cars over the last four years. This compares with the average industry reduction of 13% across all cars for a similar period.