Governments’ current climate policies and promises have the world on track for “catastrophic” average global warming of 2.6° to 3.1°C, and the odds of limiting global heating to the 1.5°C target in the Paris climate agreement are rapidly shrinking toward zero, the United Nations Environment Programme (UNEP) warns in the latest edition of its annual Emissions Gap Report.
While “it remains technically possible to cut emissions in line with a 1.5°C pathway,” the document adds, delivering on that potential “would require immediate global mobilization on a scale and pace only ever seen following a global conflict.”
The report traces much of the emissions gap to countries that adopted “globally insufficient” emission reduction pledges for 2030, then failed even to meet those targets. Seven of the G20 countries—China, India, Indonesia, Mexico, Saudi Arabia, South Korea, and Türkiye—have not yet peaked their emissions, an initial threshold seen as a “prerequisite to reaching net-zero”.
These and other failures add up to a large emissions gap compared to the trajectories that would be needed to hold average global warming to 1.5° or even 2°C, UNEP states.