Guidelines on the Use of Urine and Faeces in Crop Production

SEI at the Climate Week in NYC 2026

Event on 20 September – 27 September in New York / SEI joins the Climate Week in New York to highlight global leadership and finance solutions for accelerating the transition to net zero industry.

Introducing the OPERA database

SEI brief / Learn about the OPERA database, deployed to find evidence for the relationship between policy processes and outcomes to evaluate policy success.

Estimating the vulnerability contribution to 1990–2019 changes in the health burden of ambient air pollution: a global modelling study

Journal article / This research examines how changes in population vulnerability and exposure to air pollutants affect global air pollution-related mortality trends.