Our climate models have a big, dangerous blind spot

Climate change itself is increasingly fueling climate change. Rising concentrations of greenhouse gases are driving up global temperatures, setting off dangerous feedback loops that we have not fully accounted for in our climate models—or our emissions-reduction goals. Scientists have long warned that warming would propel further warming in various ways, but a growing number of…

气候变暖正在通过永久冻土融化、野火和湿地释放温室气体等方式反过来加剧变暖，而主流气候模型和联合国评估报告大多未计入这些反馈效应。已有研究估算，仅三类区域性反馈源就可能让全球突破1.5摄氏度和2摄氏度阈值的时间缩短多达四分之一。