20：Although the developed countries promised

20：Although the developed countries promised to provide money and technology for the developing countries to protect environment, they themselves are still eager for the natural products such as fuel, oil to meet the needs of heat and electricity power. 尽管发达国家许诺提供给发展中国家钱和技术来保护环境，但他们自己仍旧渴望自然资源，例如燃料、汽油来满足热力和电力的需要。