DeBriefed 22 May 2026: UN adopts landmark resolution | Trump takes on ‘RCP8.5’ | Climate migration

The United Nations has adopted a landmark resolution aimed at accelerating global efforts to combat climate change. The resolution underscores the urgency of reducing greenhouse gas emissions and calls for enhanced international cooperation to meet the goals of the Paris Agreement. It highlights the need for increased support to vulnerable countries facing the impacts of climate change, including those experiencing climate-induced migration. The resolution comes amid growing concerns over the slow pace of progress by some major emitters, notably the United States and Iran, which have yet to commit to net-zero emissions targets. This development follows recent analyses showing that while many countries have pledged net-zero goals, significant gaps remain in global coverage, posing challenges to limiting global warming to 1.5°C. The UN’s call for collective action aims to address these disparities and reinforce accountability mechanisms. In parallel, debates around climate scenarios have intensified, with former US President Donald Trump publicly challenging the validity of the RCP8.5 emissions pathway, often described as a “business-as-usual” worst-case scenario. His critique has sparked discussions about the role of such scenarios in shaping climate policy and public perception. Meanwhile, the issue of climate migration has gained prominence, as rising sea levels, extreme weather, and resource scarcity increasingly displace populations, prompting calls for international frameworks to manage migration linked to environmental changes. The UN resolution and ongoing discourse reflect the complex interplay between scientific projections, political will, and humanitarian concerns in addressing climate change. The global community faces mounting pressure to translate commitments into concrete actions to mitigate emissions, support adaptation, and manage the socio-economic consequences of a warming planet.