• Idea put forward by 50 least developed countries• Move could be matched by shipping fuel surcharge
John Vidal, environment editor
guardian.co.uk, Sunday 7 June 2009 19.42 BST
Britain and other rich countries will be asked to accept a compulsory levy on international flight tickets and shipping fuel to raise billions of dollars to help the world's poorest countries adapt to combat climate change.
The suggestions come at the start of the second week in the latest round of UN climate talks in Bonn, where 192 countries are starting to negotiate a global agreement to limit and then reduce greenhouse gas emissions. The issue of funding for adaptation is critical to success but the hardest to agree.
The aviation levy, which is expected to increase the price of long-haul fares by less than 1%, would raise $10bn (£6.25bn) a year, it is said.
It has been proposed by the world's 50 least developed countries. It could be matched by a compulsory surcharge on all international shipping fuel, said Connie Hedegaard, the Danish environment and energy minister who will host the final UN climate summit in December.
"People are beginning to understand that innovative ideas could generate a lot of money. The Danish shipping industry, which is one of the world's largest, has said a that truly global system would work well. Denmark would endorse it," said Hedegaard.
In Bonn last week, a separate Mexican proposal to raise billions of dollars was gaining ground. The idea, known as the "green fund" plan, would oblige all countries to pay amounts according to a formula reflecting the size of their economy, their greenhouse gas emissions and the country's population. That could ensure that rich countries, which have the longest history of using of fossil fuels, pay the most to the fund.
Recently, the proposal won praise from 17 major-economy countries meeting in Paris as a possible mechanism to help finance a UN pact. The US special envoy for climate change, Todd Stern, called it "highly constructive".
The Bonn meeting is the first climate meeting at which countries are discussing texts. These cover greenhouse gas reduction and financing developing countries' efforts to combat climate change.
Analysts said last night that the talks were most likely to stall over money. Developing countries, backed by the UN, argue that they will need hundreds of billions of dollars a year to adapt themselves to climate-related disasters, loss of crops and water supplies, which they are already experiencing as temperatures around the world rise. Yet so far, as a Guardian investigation revealed back in February, rich countries have pledged only a few billion dollars and have provided only a few hundred million.
"Developing countries will no longer let themselves be sidelined. In the past, they have been brought on board [climate negotiations] by promises of financial support. But all they got was the creation of a couple of funds that stayed empty. Developing countries will not settle for more 'placebo funds'," said Benito Müller, director of Oxford University's institute for energy studies.
Saleemul Huq, of the International Institute for Environment and Development, said that until rich countries made serious pledges, the rest of the negotiations would suffer because it would be impossible to agree actions without knowing how they would be funded.
Last week, a US negotiator, Jonathan Pershing, said that the US had budgeted $400m to help poor countries adapt to climate change as an interim measure. But that amount was dismissed as inadequate by Bernarditas Muller of the Philippines, who is the co-ordinator of the G77 and China group of countries.