BANGKOK, Thailand – After two reports predicting a warmer Earth where life is fundamentally changed, a U.N.-sponsored scientific panel next month will issue a third study describing how a united world can avert the worst, by embracing technologies ranging from nuclear power to manure controls. Under a best-case scenario for heading off severe damage, the global economy might lose as little as 3 percentage points of growth by 2030 in deploying technologies to reduce greenhouse-gas emissions, says the panel’s draft report, obtained by The Associated Press. But it won’t be easy. For one thing, the governments of such major emitters as the United States, China and India will have to join the Kyoto Protocol countries of Europe and Japan in imposing cutbacks in carbon dioxide and other heat-trapping gases emitted by industry, power plants and other sources. Agriculture: Improved land management to increase carbon storage in soil, improved livestock and manure management. Forestry: Reduced deforestation, restoring forests, planting new forests. Waste: Control of methane emissions from landfills. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set! The draft report from the Intergovernmental Panel on Climate Change (IPCC), whose final version is to be issued in Bangkok on May 4, says emissions can be cut below current levels if the following are adopted: Energy supply: Fuel switching from coal to gas, nuclear power, hydropower, solar, wind, geothermal and bio energy. Transport: More fuel-efficient vehicles, rapid public transport systems. Buildings: Efficient lighting, better insulation and ventilation, more efficient heating and cooling devices. Industry: More efficient electrical equipment, heat and power recovery.