Tusker worked with leading carbon management consultants, Carbon Footprint, to calculate that it emitted some 113.32 tonnes of carbon dioxide from its head office operations in Watford, including business travel, over a 12-month period from April 2009 to March 2010.

This level of carbon footprint was then offset by investment in Certified Emission Reduction (CER) carbon offsets which fund carbon avoidance and reduction projects globally. Together with Carbon Footprint's evaluation, CERs are approved to the Government's Quality Assurance Scheme for carbon measurement and offsetting.

John Buckley, managing director at Carbon Footprint, said: 'Tusker is to be applauded for its environmental approach by completing a robust evaluation of its carbon emissions from head office operations and business travel and then by offsetting these against Certified Emission Reduction carbon offsets.'

Tusker marketing manager Vicky Anderson said the company had wanted to set an environmental example by achieving carbon neutrality through approved carbon offset schemes and was now looking at ways of further reducing its levels of carbon emissions.

'Many of our fleet clients are taking environmental actions themselves and we wanted to introduce initiatives to reduce our own carbon footprint as a message of support for them as well as making a contribution in our own right.

'We are now looking at a range of options to further reduce our carbon footprint, including reviewing our office operations and introducing car sharing where appropriate,' she commented.