New scientific consensus released today details the potential future course of climate change, with serious repercussions for international security and stability. The Intergovernmental Panel on Climate Change (IPCC) released the first product of its Sixth Assessment Report (AR6), summarizing the latest scientific understanding on the state of global climate change. This report, completed by the IPCC Working Group I (WGI), offers the best collective picture of how human caused climate change is impacting the physical systems of the planet now and in the future.
The report makes clear that our planet’s climatic systems are changing rapidly in response to the accumulation of greenhouse gases in the atmosphere. By 2100, global average temperatures are expected to rise between 2.1-3.5°C in an intermediate scenario, or 3.3-5.7°C in a high emissions scenario, if humans do not curb and continue expanding greenhouse gas emitting activities. The path to keeping global temperatures to just 1.5°C of warming, the report states, looks increasingly narrow; while every additional fraction of a degree in planetary warming will have worsening impacts on climate stability.
The findings of the WGI report have two important implications for security audiences: First, cutting emissions and adapting to climate impacts are equally important for security in the coming years; second, that the increasing risk of crossing climate tipping points suggests security services must prepare for managing multiple climate-induced crises at once.(more…)