"There is concern throughout the world about the decision of the new administration to oppose the Protocol," Annan said, according to prepared remarks.
Annan has called the Bush administration move "unfortunate" and after coming under intense and widespread criticism about its decision, the United States agreed recently to attend the next round of international talks on climate change in Bonn, Germany in July.
Bush pulled out of the Kyoto pact after criticising it as faulty and harmful to the US economy. The administration also said it was unfair that developing nations were exempt from the first phase of restrictions on emissions of pollutants.
But Annan attacked the assertion that cutting emissions and other conservation measures would hurt economies.
"In fact, the opposite is true: unless we protect resources and the earth's natural capital, we shall not be able to sustain economic growth," he said.
"It is also said that conservation, while admirable, has only limited potential. But economists now broadly agree that improved energy efficiency and other 'no regrets' strategies could bring great benefits at little or no costs," Annan said in what appeared to be a rejection of remarks by US Vice President Dick Cheney that conservation was a personal virtue but not the basis of a sound energy policy.
Annan dismissed arguments that global warming is an unproved phenomenon and that more studies should be undertaken to be sure it a real threat.
"Imagine melting polar icecaps and rising sea levels, threatening beloved and highly developed coastal areas such as Cape Cod with erosion and storm surges," he said. "Imagine a warmer and wetter world in which infectious diseases such as malaria and yellow fever spread more easily.
"This is not some distant, worst-case scenario. It is tomorrow's forecast. Nor is this science fiction. It is sober prediction, based on the best science available," he said.
Annan called on all world leaders to show that they take climate change seriously but said developed nations had to lead the way because they release most of the pollutants that cause for global warming.
"Developing countries will have to do their part in due course; their exclusion from emissions commitments, it should be stressed, is only for the first phase," Annan said, noting that China and other developing nations were taking steps to limit the growth in their emissions.
The Kyoto Protocol calls for industrialised nations to cut emissions by an average of 5.2 per cent from 1990 levels by 2012, to slow the buildup of heat-trapping greenhouse gases in the atmosphere.
- REUTERS
www.nzherald.co.nz/climate
Intergovernmental Panel on Climate Change
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Summary: Climate Change 2001
United Nations Environment Program
World Meteorological Organisation
Framework Convention on Climate Change