ALT IPCC chair Jim Skea and IPCC vice-chairs Ramón Pichs-Madruga and Ladislaus Chang’a consult with WG II co-chairs and vice-chairs on 28 February 2025. Credit: IISD/ENB | Anastasia Rodopoulou

ALT The image shows a series of six line graphs depicting the trends in global emissions of different pollutants from 1750 to 2022. The title reads "The world has passed 'peak pollution'," indicating that emissions of several pollutants have declined since their peak levels, except for ammonia. The pollutants shown are: - Sulphur dioxide (SO₂) – peaked in the mid-20th century and has since declined. - Nitrogen oxide (NOx) – followed a similar pattern, peaking around the late 20th century and then dropping. - Carbon monoxide (CO) – peaked mid-20th century and declined. - Black carbon (BC) – shows a rise until recently, followed by a drop. - Organic carbon (OC) – has risen steadily with a recent plateau. - Ammonia (NH₃) – continues to rise without a recent decline.