Tropospheric ozone is a greenhouse gas, super pollutant and air pollutant. It warms the Earth’s atmosphere, harms human health when inhaled, and damages crops and forests. As a greenhouse gas, it is responsible for approximately 0.23°C of present-day warming. Yet dedicated action to reduce tropospheric ozone is absent from the climate policy agenda at a global, regional, and country level. As it’s one of the super pollutants driving half of global warming, this needs to change.

This briefing by Clean Air Fund, the Center for Study of Science, Technology and Policy (CSTEP), Berkeley Air Monitoring Group and Orbis Air, and translated by CEBRI, presents recommendations and measures that can help mitigate climate change in the coming decades, improve air quality for billions of people, and strengthen global food security.