Turbulence ahead

The growth in travel, sparked by the increase in low-fare airlines around the world, has led to higher emissions of greenhouse gases such as carbon dioxide and nitrous oxide, which most scientists believe contribute to climate change and cause more damage when discharged at high altitudes than at sea level.

The European Union has taken the lead in addressing aviation greenhouse emissions, proposing a system of carbon trading. Some EU countries have imposed passenger taxes to pay for environmental programmes. Some European airlines have adopted regulations that go beyond minimum government requirements.

By contrast, Washington has taken a go-slow approach. The Bush administration opposes the EU emissions plan, which would affect all airlines flying to and from the 27 EU countries by 2012. In the absence of directives from the White House, US carriers have launched no major greenhouse initiatives of their own.

US carriers and regulators say they prefer a global solution. They are wary of any mandates that could increase costs and imperil the aviation industry8217;s fragile financial recovery.

Over the past five years, the world8217;s airlines have roughly broken even or eked out small profits, according to Geneva8217;s International Air Transport Association. Worldwide profits for 2007 are expected to be about 2.5 billion, the association reports.

Europe and America8217;s starkly different approaches to aviation and global warming appear to put the EU and the US on a political collision course. The conflict intensified in December, when the EU decided to include both European and foreign airlines in an emissions trading system that EU says would result in a modest rise in fares but would at least begin to bring emissions under control.

The scheme would involving capping each airline8217;s permissible greenhouse emissions, allowing carriers that exceed limits to buy credits from other companies and carriers that come in under their caps to sell rights. The EU plan is set to go into effect in 2011 for flights within the EU and be extended to flights to and from EU countries in 2012.

The plan has the support of major European carriers. Among them is British Airways, which already participates in a carbon-trading system for domestic flights in the United Kingdom. British Airways and other carriers also have imposed an 8220;air passenger duty8221; 8212; a British government tax 8212; to airfares. The tax, designed to raise funds to combat global warming, went into effect February 1.

US carriers say the EU plan would impose an unfair burden on non-EU airlines and are awaiting a global approach to global warming.

The world8217;s leading aviation organisations, though, disagree on what to do. The International Air Transport Association, whose member-airlines carry 95 per cent of the planet8217;s air passenger traffic, says it can live with emissions trading. Emissions caps and trading, the organisation said, is preferable to additional taxes or restraints on growth.

8220;Aviation is about the most expensive place to make cuts in CO2 emissions 8212; we have no substitute fuels, and high fuel prices have already generated most of the achievable efficiencies,8221; Brian Pearce, the association8217;s chief economist, said.

Nevertheless, the EU plan could work, Pearce said 8212; provided airlines that exceed their carbon caps are permitted to buy credits from companies in other industries 8212; especially energy companies and heavy manufacturers, which could have an easier time staying below their own caps and thus have credits to sell.

Emissions trading in general 8212; and the EU plan in particular 8212; draws no support from the Air Transport Association, which represents most major airlines in the US, including carriers that also belong to the global group. 8220;ATA is disappointed that the EU remains intent on unilaterally covering the flights of EUcarriers in its emissions trading scheme,8221; the US association said.

The Bush administration has also cast a cold eye on the EU proposal, hinting that it might take legal action when the European plan goes into effect. John Byerly, deputy assistant secretary of state for transportation affairs, called it 8220;unworkable and unlawful8221; in remarks last month.

In the absence of formal international agreement, some airlines are charting their own flight plans when it comes to global warming. British Airways, Europe8217;s third-largest carrier, supports the EU emissions trading plan, said Robin Hayes, executive vice president for the Americas. 8220;Global warming is a real fact in our industry,8221; he said. 8220;We can8217;t stick our heads in the sand.8221;

In the Asia Pacific region 8212; which, along with the Middle East, has the world8217;s fastest-growing civil aviation market 8212; leading carriers appear to be staking out positions somewhere between EU and the US.

Hong Kong8217;s Cathay Pacific Airways is investing in environmentally friendly technology and 8216;focusing on fuel efficiency as a key internal way to tackle climate change,8217; said spokesman Hugo Lai. As for emissions trading, Cathay Pacific 8212; which flies to Europe from Asia and would be affected by the EU plan 8212; is interested in theory but also cautious.

8220;Cathay Pacific understands that emissions trading is a possible mechanism to help mitigate the impact of the industry on climate change,8221; Lai said. 8220;However, the company believes that further study is required to ensure that such initiatives can be applied practically to a global industry such as aviation.8221;