Craig Bennett is to step down as chief executive of Friends of the Earth after almost a decade with the organisation.
Friends of the Earth announced today that Bennett, who joined the campaigning body as director of policy and campaigns in 2010 and became chief executive in 2015, would step down to become chief executive of The Wildlife Trusts at the start of April.
Friends of the Earth said in a statement that Bennett had "refocused the organisation on its unique role of empowering communities to take action to protect the planet".
Under Bennett, the organisation said, it had enjoyed campaign successes to protect nature and the climate including the banning of bee-harming pesticides and securing a moratorium on fracking in England.
Frances Butler, chair of Friends of the Earth, said: "Faced with a climate and ecological emergency, Friends of the Earth is as vital today as it’s always been.
"Craig has led support for communities to achieve significant wins for their environment and transformed the organisation so that it is ready to meet these environmental challenges head-on.
"I want to thank Craig for his hard work and dedication to Friends of the Earth and wish him well in his next venture."
Bennett said he felt proud of what Friends of the Earth had achieved under his leadership.
"From campaign wins that protect nature and the climate, to growing a movement passionate about creating a better environment for all, I feel privileged to have worked alongside so many inspiring local activists and campaigners," he said.
"It has been a real honour to serve as chief executive of Friends of the Earth and I will always remain a passionate supporter and friend of this extraordinary organisation and movement."