The United Nations Environment Programme (UNEP) has warned that the critical window to limit global warming to 1.5°C above pre-industrial levels without overshoot has effectively closed. According to UNEP’s latest assessment, current national climate commitments and policies are insufficient to prevent global temperatures from temporarily exceeding this threshold. The report highlights that while limiting warming to 1.5°C remains technically possible, it now requires rapid, deep, and sustained emissions reductions combined with large-scale carbon dioxide removal technologies. The "lost opportunity" underscores the urgency for countries to enhance their climate actions significantly ahead of upcoming international negotiations. Failure to avoid overshoot increases risks of severe climate impacts, such as extreme weather events, biodiversity loss, and threats to food and water security. UNEP emphasizes that immediate and ambitious policy implementation is essential to minimize overshoot duration and severity, aiming to bring temperatures back below 1.5°C as soon as possible to safeguard vulnerable communities and ecosystems.

Published on: 2026-10-21 at 00:15:02