Assessment of Global-Scale Risks of Climate Change

Abstract

Climate change poses various risks to nature and society on a global scale. Nations have agreed to keep the increase in the global mean temperature well below 2 degrees Celsius by achieving net-zero greenhouse gas (GHG) emissions. While achieving net-zero GHG emissions is inevitable to minimize the risks caused by climate change, it is not the only way to reduce the risks, and it does not cancel all of the risks related to climate change. Moreover, attempts to reduce GHG emissions can also pose non-negligible risks. Considering its spatially and temporally broad impacts on multiple domains, integrated assessments of the risks, including value judgement, is necessary when we tackle the issues related to climate change.