It highlighted the use of nuclear, solar and wind power, more energy-efficient buildings and lighting, as well as capturing and storing carbon dioxide spewed from coal-fired power stations and oil and gas rigs.
The report, agreed by scientists and officials from more than 100 countries, does not set out policies. It reviews the latest science on the costs and ways to curb emissions growth and is designed as a blueprint for governments.
Current policies were inadequate, and action was needed now, it said.
”The need for immediate short-term action in order to make any significant impact in the longer term has become apparent,” it said.
Delegates said the onus was now on governments to put the report into action.
”This is a good report to guide governments,” Stephan Singer of environmental group WWF said.
In some cases, technology could lead to substantial benefits, such as cutting health costs by tackling pollution.
Even changing planting times for rice paddies or managing cattle and sheep flocks better could cut emissions of methane, another powerful greenhouse gas, said the report by the UN panel which draws on the work of 2,500 scientists.
Its previous two reports painted a grim future of human-induced global warming causing more hunger, droughts, heatwaves and rising sea levels which would drown low-lying islands.
In Bangkok, China and Europe sparred about the costs and levels of greenhouse gas emissions which ought to be allowed. Delegates also debated the role of nuclear power.
China, the world’s number two emitter of greenhouse gases after the United States, wanted the IPCC report to exclude language which would promote stabilising emissions near current levels in part because of the limited economic studies available.
The steeper the emissions cuts, the more costly to the global economy, the report says.
In 2030 the costs for limiting greenhouse gases at ”stabilisation” levels of between 445 and 710 ppm (parts per million) CO2-equivalent range from a 3 percent decrease of global GDP to a small increase, it said.
However, regional costs might differ significantly from global averages, it added.
Greenhouse gas concentrations are now at about 430 ppm CO2-equivalent.
”It’s done,” he told Reuters after five days of intense wrangling about how much the battle against climate change would cost and how to go about it.
The talks in Bangkok ran into the early hours as scientists and government officials from more than 100 countries tried to resolve complex issues in the report by the Intergovernmental Panel on Climate Change (IPCC).
The report deals with ways to curb rapid growth in greenhouse gases, particularly carbon dioxide from burning fossil fuels and forests, that scientists say are causing global warming.
It also says current policies are inadequate.
”With current climate-change-mitigation policies and related sustainable-development practices, global greenhouse gas emissions will continue to grow over the next few decades,” a revised draft of the report says.
The formal report, yet to be published, does not set out policies. It reviews the latest science on the costs and ways to curb emissions growth and is designed to be a blueprint for governments.