This paper presents a concise summary of recent studies on the long-term variations of haze in NorthChina and on the environmental and dynamic conditions for se
The authors regret to inform that Figs.2 and 3 were misplaced.The correct figures and figure captions appear below:The authors would like to apologize for any i
The Paris Agreement proposed to keep the increase in global average temperature to well below 2 ℃ abovepre-industrial levels and to pursue efforts to limit the