UNEP 'Limiting Overshoot' Report: UN Sets Pathway for Inevitable Breach of 1.5°C Warming Limit

Gist The United Nations Environment Programme UNEP has released a landmark report acknowledging that breaching the 1.5°C global warming limit set by the Paris Agreement is now unavoidable. To manage this reality, the UN has proposed an "overshoot, peak, and decline" pathway, which aims to keep peak temperatures as low as possible before reversing the trend to below 1.5°C by 2100. For civil services aspirants, this marks a fundamental paradigm shift in global climate diplomacy: the international community is moving away from purely preventing a breach and is now focusing on managing a temporary overshoot through massive carbon removal and aggressive methane reduction. Background The Paris Agreement 2015 established a central, legally binding international treaty goal to limit the global average temperature rise to well below 2°C, and preferably 1.5°C , above pre-industrial levels. Previously, the United Nations Framework Convention on Climate Change UNFCCC framework and global climate modelling focused entirely on preventing this breach through Nationally Determined Contributions NDCs and net-zero targets. Because global greenhouse gas emissions have continued unabated, the remaining global carbon budget has been rapidly depleted,…