In the recent decades, most countries’ CO2 intensity has decreased, but their decline rates are significantly different. Based on the data set of 89 countries from 1980 to 2008, this paper tries to quantitatively investigate the potential reasons for their differences, and discusses the...

Regarding the carbon emissions allocation principles, whether historical responsibility can be and how to be incorporated into the global climate framework is still under heated discussions. Here we argue that the permits share of most developed countries will sharply shrink when historical...

Due to complicated climatic and geographic conditions, China remains severely vulnerable to frequent, wide-scale natural disasters. We analyzed the impact of natural disasters on human security, agriculture safety and economic security over the past 30 years. The results reveal the high...