By Emma Procter
Cheapflights defends air travel as study highlights environmental impact of shipping.
UK comparison booking website Cheapflights has defended air travel after the leak of a UN study that showed the shipping industry was by far a bigger polluter of CO2.
The study suggested that the shipping industry is responsible for 1.12bn tonnes of CO2 emissions - 4.5% of all global emissions.
By comparison, Cheapflights said emissions caused by aviation amount to just over 650m tonnes.
"It's about time people woke up to the environmental dangers of shipping," said Cheapflights' CEO, David Soskin.
"We at Cheapflights have been raising awareness on the subject for years, but environmental lobbyists have kept the focus on airlines, using them as an easy target instead of heeding our warnings on other culprits," he added.
He said the airline industry has taken big leaps towards a creating greener aviation industry with introduction of environmentally friendly aircraft like the Boeing Dreamliner and Airbus 380, both of which use 20% less fuel.