BBC News
watch One-Minute World News
Last Updated: Friday, 19 October 2007, 02:51 GMT 03:51 UK
Ships' CO2 'twice that of planes'
By Matt McGrath
Environment reporter, BBC News

Tanker in Singapore
Some 90,000 ships ply the world's oceans
Global emissions of carbon dioxide from shipping are twice the level of aviation, one of the maritime industry's key bodies has said.

A report prepared by Intertanko, which represents the majority of the world's tanker operators, says emissions have risen sharply in the past six years.

Previous International Maritime Organisation estimates suggested levels were comparable with those of planes.

Some 90,000 ships from tankers to small freighters ply the world's oceans.

Clampdown considered

Intertanko says its figures are the most realistic estimation of the current levels of CO2 from ships.

Its estimate suggests that the world's shipping uses between 350 and 410 million tonnes of fuel each year, which equates to up to 1.2 billion tonnes of carbon dioxide emissions.

Intertanko says that growth in global trade coupled with ships burning more fuel to deliver freight faster has contributed significantly to the increase.

Dragos Routa, the technical director of Intertanko, told the BBC the figures were a work in progress but the levels of emissions had risen sharply.

While there are few accurate measures and even fewer restrictions on the amounts of carbon dioxide that ships can emit at present, governments in many parts of the world are considering a clampdown as part of their efforts to tackle global warming.

But Mr Routa argued that the much greater tonnage carried by each vessel, compared with aircraft, meant that shipping was still a much greener form of transporting freight around the globe.

RELATED INTERNET LINKS
The BBC is not responsible for the content of external internet sites



FEATURES, VIEWS, ANALYSIS
Has China's housing bubble burst?
How the world's oldest clove tree defied an empire
Why Royal Ballet principal Sergei Polunin quit

PRODUCTS & SERVICES

Americas Africa Europe Middle East South Asia Asia Pacific