MAZDA is planting 5,000 trees in an effort to make this year's Motor Show the 'greenest' yet. Research was carried out by Edinburgh University on how much CO2 the show would create during its run from Tuesday, October 20 to Sunday, November 1.

This includes everything from heating and gas, to the vehicles carrying visitors and staff to the show. The university said it would take 5,000 trees to absorb the CO2 created by the show. Mazda is funding the planting of these trees in a special Motor Show Forest in the West Midlands, forming part of the Forest of Mercia.

Future Forests is responsible for the planting of the new Forest of Mercia and throughout the show representatives have been attempting to persuade companies and individuals to buy a tree at £3 each. It is estimated that five trees will absorb the CO2 emissions produced by a 'normal' petrol car over a year - about a tonne of carbon.