As the resumed Fifth United Nations Environment Assembly (UNEA) gets underway, what can we learn about its role as a coordinator and catalyst for international environmental action?
Years of activism over mercury poisoning led to the Minamata Convention on Mercury, a landmark treaty on environment and health. Going forward, what work still remains and what can we learn?
With just weeks remaining until the UN climate talks in Glasgow and countries facing calls to show greater ambition, it's time to look at what we have learned from "bottom-up" approaches to environmental governance.
The last time there was a major climate treaty, the United States stood on the sidelines. This time, stakes may be higher, but the energy transition will continue.