Spatial patterns of the climate response to cumulative emissions

《巴黎气候协定》阐明了减缓气候变化的挑战，并强调有必要将全球气温上升幅度限制在比工业化前温度高1.5至2°C之间。要实现这一雄心勃勃的目标，就需要协调一致、持续不断地努力减少温室气体排放，以尽量减少气候变化达到危险水平的风险。这些努力必须基于对气候系统将如何对人类温室气体排放作出反应，以及何种排放水平符合《巴黎协定》通过的气候目标的合理科学理解。

The Paris Climate Agreement has articulated the challenge of climate mitigation and emphasized the need to limit global temperature increases to between 1.5 and 2°C above pre-industrial temperatures. Meeting this very ambitious goal will require concerted and sustained efforts to decrease greenhouse gas emissions so as to minimize the risks of dangerous levels of climate change. These efforts must be informed by a sound scientific understanding of how the climate system will respond to human greenhouse gas emissions, and what level of emissions are consistent with the climate targets that have been adopted in the Paris Agreement.