ClimateBiz: China has called on richer nations to help foot the bill for fighting climate change in developing countries. China last week suggested developed nations dedicate 0.7 percent of the gross domestic product toward helping developing countries address climate change. The news comes a week after a Chinese study predicted emissions in the country could double or more in the next 20 years. China has long rejected emissions caps and was exempt from the Kyoto Protocol, a point of …