De Boer estimates the annual cost of climate change adaptation at US$100 billion per year. This is the amount needed to cope with natural disasters such as flooding and drought that will result from increased warming. Meanwhile, he pegs the cost of cutting global emissions at US$200 billion annually.
Currently, the draft text contains 200 brackets indicating points of disagreement between negotiators, who differ on who should bear the financial burden of the climate change challenge.
Nevertheless, De Boer stressed that a U.N. climate pact to be agreed upon in Copenhagen should set up a fair mechanism for raising long-term funds, rather than compel countries to contribute specific amount. 'A robust burden-sharing formula is the most important thing.'
De Boer also recommended that countries participating in the Copenhagen Conference, open negotiations with some cash on the table, perhaps US$10 billion.
At the G8 Summit in July, UNEP Executive Director, Achim Steiner noted that a successful Copenhagen Summit depended on the political will of world leaders to make good on their Green Economy pledges which entails investing heavily in renewable energies and energy efficiency.
In the run-up to the Copenhagen meeting, two more rounds of UN climate talks will be held; one in Bangkok, Thailand from 28 September - 9 October and another in Barcelona, Spain from 2-6 November.