A history of the 1.5°C target

The 1.5°C target is now widely considered as the maximum acceptable limit for global warming. However, it at once recent and, appears increasingly unreachable, already almost obsolete. Adopted an aspirational in Paris Agreement 2015, objective originated with a political impetus within UNFCCC negotiations. Intergovernmental Panel on Climate Change (IPCC) endorsed this policy-driven when produced Special Report 1.5°C. This article highlights continuity of history that 2°C target, but also differences between two. Because considerably raises bar mitigation efforts, exacerbates tensions and ambiguities were latent target. retraces emergence diplomatic negotiations, preparation IPCC report 1.5°C, new kinds debates they provoked among climate scientists experts. To explain how unreachable became reference action, we analyze “political calibration” science politics, which can be described codependency politics. categorized under: Integrated Assessment > Modeling Climate, History, Society, Culture World Historical Perspectives Assessing Impacts Evaluating Future