In the ninth edition of our Where the Green Grants Went report series, we analyse over 6,555 grants awarded by UK trust, foundations and lottery sources to environmental causes from 2021/22. Environmental giving from these sources has never been higher, with UK-based foundation grants almost trebling, but there is plenty more to be done. As a result, WTGGW9 includes a new section dedicated to exploring what effective philanthropy looks like and how it may be implemented by environmental funders.