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…

氣候變暖正在通過永久凍土融化、野火和濕地釋放溫室氣體等方式反過來加劇變暖，而主流氣候模型和聯合國評估報告大多未計入這些反饋效應。已有研究估算，僅三類區域性反饋源就可能讓全球突破1.5攝氏度和2攝氏度閾值的時間縮短多達四分之一。