UN charts retreat in fight to limit climate change, but not giving up

Key Points:

• The United Nations has acknowledged that the world will soon exceed the 1.5°C warming limit set by the 2015 Paris Agreement, marking a shift from preventing to managing and eventually reversing global temperature rise.
• The new strategy focuses on limiting the peak temperature overshoot above 1.5°C, then gradually reducing it below that threshold by the end of the century through ending fossil fuel use and developing carbon dioxide removal technologies.
• The report warns that the overshoot period will bring decades of intensified climate impacts including extreme weather, food and water shortages, species extinctions, and increased health risks, disproportionately affecting vulnerable populations.
• Scientists emphasize the urgency of immediate emissions reductions to minimize peak warming and duration above 1.5°C, though some express skepticism about the feasibility and reliability of large-scale carbon removal methods needed to cool the planet.
• Adaptation efforts must be significantly increased to cope with unavoidable climate impacts, while policymakers prepare for a future where global temperatures temporarily exceed the agreed safety threshold before hopefully declining.