Offsetting attacked

[mailchimp_signup][/mailchimp_signup]The schemes, which are particularly promoted by airlines to make passengers feel less guilty about the environmental impact of flying, have vastly differing estimates of carbon footprint, says The Consumers Association, a British NGO. It tested 13 offset schemes on an average house – they put the ‘carbon footprint’ at between 1.15 and 7.1 tonnes a year. The Stockholm Environment Institute says all these schemes leave out the full carbon emissions, and the average British house emits 20 tonnes per year.