Integration of Short-Lived Climate Pollutant and air pollutant mitigation in nationally determined contributions

Limiting global temperature increases to 1.5 °C while respecting ‘the right health’ requires substantial reductions in Short-Lived Climate Pollutants (SLCPs), including methane, black carbon and hydrofluorocarbons, co-emitted air pollutants. This study evaluates the inclusion of SLCP pollutant mitigation within Nationally Determined Contributions (NDCs) that were submitted between 2015 2022. Between pre- post-2020 NDCs, explicit reference SLCPs as priorities more than doubled, indicating a rise policy attention these There was also large increase percentage countries methane HFCs scope their overall GHG reduction targets, three include targets. With respect policy, there 45% number specific measures included NDCs post-2020. Hence, with implicit other pollutants covered is now substantially larger compared pre-2020, due greater reduce alongside (other) GHGs.Key insights Local benefits for human health from pollution improvements key priority earlier NDC reporting.Many can simultaneously GHGs, helping achieve local quality improvements.To demonstrate achievement reductions, focusing on implementation should ensure are integrated into climate change monitoring frameworks.Post-2020 provide many clear examples how both ambition development benefits, which could be adopted countries.