A plane skims the parasols as it lands on the Dutch island of Saint Martin in the Caribbean. If these holidaymakers are flying long haul each has contributed more greenhouse gases than a single car does in a year. Global aviation accounts for 3.5 per cent of all emissions, but with air travel becoming economically possible for larger numbers this could increase to 15 per cent by 2050, wiping out gains in other sectors. Aviation emissions growth is not included in the new Climate Change bill

Photograph: Splash News