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DURBAN (Reuters) - The world is forecast to grow hotter, sea levels to rise, intense weather to wreak even more destruction and the new deal struck by governments in Durban to cut greenhouse gas emissions will do little to lessen that damage.
Climate data from U.N. agencies indicates that the accumulation of heat-trapping gases will rise to such levels over the next eight years - before the newly agreed regime of cuts in emissions is supposed to be in place - that the planet is on a collision course with permanent environmental change.
Countries around the globe agreed on Sunday to forge a new deal forcing all the biggest polluters for the first time to limit greenhouse gas emissions by 2020. But critics said the plan was too timid to slow global warming.
For a reduction plan to have a major impact, analysts say, the world's largest emitter, China, needs to be weaned from coal-intensive power sources that are choking the planet with carbon dioxide (CO2) and developed countries must spend heavily to change the mix of sources from which they draw their energy.
But they see little political will to implement these costly plans and argue that the U.N. process showed, in two weeks of talks in the South African city of Durban, that it is bloated, broken and largely incapable of effecting sweeping change.
"The challenge is that we begin the talks from the lowest common denominator of every party's aspirations," said Jennifer Haverkamp, director of the international climate program for Environmental Defense Fund, a U.S. group which campaigns against pollution.
"For this effort to be successful, countries need to be ambitious in their commitments and to refuse to use these negotiations as just another stalling tool," she said.
Domestic political constraints make it unlikely that pledges in Durban for more green projects in the developed world and stepped up aid for developing countries will come to fruition given problems for government funding in Europe, the United States and Japan.
In about 20 years of negotiations, the U.N. process has produced one binding deal on emissions cuts, the 1997 Kyoto Protocol. It is seen as a fading accord affecting a handful of developed states that now account for only 25 percent of global emissions, and was kept on life-support by the Durban deal.
The latest agreement extends limits on advanced countries that would otherwise expire next year. But it is widely seen as not doing nearly enough to make a dent in emissions.
The pact, known as the "Durban Platform," produced the promise of a new legally binding deal by 2020 and set out a road map to get there. The worry is that by the time any new provisions take effect, they will have been diluted in negotiation to the point of being meaningless, analysts said.
China, the United States and India, the world's three biggest emitters accounting now for about half of all global CO2 emissions, are not bound by Kyoto and would not be bound to any legally enforceable numbers until at least 2020.
The three have been accused by environmental lobby groups for years of blocking tough measures, and all three cite domestic priorities in their defense. The U.S. Senate needs a supermajority to approve global treaties and does not have a broad enough coalition to sign off on a global climate deal.
India and China said curbing their emissions would hurt their fast-growing economies and put hundreds of millions of their people at risk as they try to escape poverty.
But those calling for tighter curbs on emissions say that those populations are being put at greater risk by climate change: "The people of the world are the biggest losers because the governments are kowtowing more to the corporate interests than the interests of the people for more aggressive action," said Alden Meyer of the Union of Concerned Scientists.
Myer, a veteran of the U.N. climate talks, called for greater ambition on emissions cuts and financial support for industrial change and for "a more collaborative spirit than we saw in the Durban conference centre these past two weeks."
National envoys to the U.N. climate process and scientists who brief them see a need to limit the global average temperature rise to at least 2 degrees Celsius over pre-industrial times to prevent the most serious climate change. Environmental groups have said even that is not enough.
The United Nations Environment Programme said in a report last month that emissions were on track to grow above what is needed to limit global warming to the 2-degree mark, with analysts warning that delays in cuts for developed states and curbing the furious pace of emissions growth in major developing countries increasingly put the planet at risk.
Myer said: "We are on a path to 3-3.5 degree Celsius increase if we don't make aggressive cuts by 2020.
"And there is nothing to suggest this deal will alter that."
As temperatures rise, so does the damage, which includes crop failures, increasing ocean acidity that would wipe out species and rising sea levels that will erase island states, U.N. reports said.
The Organisation for Economic Cooperation and Development said global average temperatures could rise by 3-6 degrees by the end of the century if governments failed to contain emissions, bringing permanent destruction to ecosystems.
The International Federation of Red Cross and Red Crescent Societies, the world's largest disaster relief network, saw the Durban deal as a collective failure to stem the destruction caused by climate change on the world's most vulnerable people.
"It is frankly unacceptable we cannot all agree when so many lives are at stake," Bekele Geleta, the group's secretary general said in a statement.
Selwin Hart, chief negotiator for an alliance of small island states, took some heart, however, that at least there was agreement to keep on talking: "I would have wanted to get more, but at least we have something to work with," he said.
"All is not lost yet."
Additional reporting by Nina Chestney, Barbara Lewis and Agnieszka Flak in Durban; Editing by Alastair Macdonald