Juniper, who has been executive director for six years, said he felt the time was right to “take on new challenges”.
“I have achieved many personal ambitions working as part of a great charity that’s made hugely positive changes to the lives of people and their environment, both locally and around the world,” he said. “Thanks to Friends of the Earth’s successful public campaigns, we are about to get a UK law on climate change and have already got a law in place that is making doorstep recycling possible for the British public.”
Simon Counsell, chair of Friends of the Earth’s board, said: “The role of director at Friends of the Earth is extremely demanding, and we have gone from strength to strength under Tony’s leadership.
“Any new director will need to be an exceptional person, able to publicly champion a charity that makes a real difference to people and the environment, as well as a great internal leader – we will be inviting applicants from all sectors and look forward to a smooth transition next year.”