The United Nations Environment Programme is working with San Salvador city and its surrounding coffee farms to create a natural defence against floods. Known as CityAdapt, the project is restoring 1,150 hectares of forests and coffee plantations to revive San Salvador’s ability to absorb rainfall.
https://www.youtube.com/watch?v=dwPyt1CX6tU&feature=youtu.be
CityAdapt is funded by the Global Environment Facility. You can find more information on the project website here.

