Juniper was born in Oxford, and is the son of Austin Juniper and Constance Elliston, who married in Oxford in 1951. His mother was a waitress and his father, a WWII veteran, worked at Plant Oxford.
He has advised Union Bancaire Privée as an impact advisory board member and as co-chair of its biodiversity recovery fund advisory committee. In addition, Juniper has advised companies including Danone, Skanska and Interserve assisting with their sustainability strategies – and was a co-founder of the Robertsbridge Group, which provides advice to companies on sustainability matters.
In 2008, Juniper was one of the authors of the Green New Deal Group report A Green New Deal, which proposed tackling the financial crisis, climate change and energy insecurity together. Between 2007–12, Juniper was a director of Climate for Ideas, a climate communications organisation. He was also on the advisory board of Sandbag, a climate policy think tank.
Between 2017–19, Juniper was executive director of WWF-UK, where he led the organisation's advocacy, policy engagement and campaigning efforts. This included oversight of WWF-UK's participation in Greener UK during the development of post-Brexit environmental governance. During this time, Juniper argued that ecological restoration should be central to economic policy, contending that recovering the natural environment is "one of the soundest investments that society can make" – rather than a cost. He also wrote that overconsumption of animal protein is a pressure on the world's soils, contending that reduced consumption of livestock-based food and less food waste would lower agricultural land use.
Juniper was reappointed for a second term in December 2021, and for a third term in March 2025, running from April 2025 to April 2027, making him the longest-serving chair of Natural England. During his chairmanship, the agency oversaw the introduction of biodiversity net gain, landscape-scale nature recovery projects and the King's Series of national nature reserves. Its budget has roughly tripled from its 2019 level.
Natural England acts as the licensing authority for the badger cull, conducted under Defra policy to control bovine tuberculosis. Juniper, who had voiced reservations about the cull before his appointment, said he would be guided by the evidence and that the policy was set by ministers; though some conservationists criticised the agency for licensing the killing of a protected species. In May 2026, Defra confirmed that badger culling had effectively ended in England, with a planned shift towards vaccination.
In 2025, as Natural England took on a role administering a developer-funded nature restoration fund under the UK Government's planning reforms, Juniper publicly disputed ministers' suggestions that nature was blocking development, saying the claim was not fully backed by evidence. Critics also questioned a potential conflict of interest in the agency receiving developer funds while also regulating development. Defending Natural England's role, Juniper rejected the idea that nature and development were opposed, telling a parliamentary inquiry session that "it is not either–or, they are co-dependent".
Asked about the HS2 "bat tunnel", a £100m structure built to protect rare bats and criticised as wasteful, Juniper said in 2025 that the agency wanted fewer such schemes, arguing the funds would have been better used expanding the bats' habitat – and citing it as an example of the site-by-site approach the agency was moving away from. In 2025, Natural England adopted a new strategy, Recovering Nature for Growth, Health and Security, reframing nature recovery as underpinning economic development, public health and national security.
Juniper has supported the ecological case for reintroducing predators such as the lynx, comparing an ecosystem without them to "a watch with some of the cogs pulled out". Around the publication of his 2015 book What Nature Does for Britain, Juniper advocated for a Nature and Wellbeing Act – a legal framework for nature recovery modelled on the Climate Change Act – endorsed by the Wildlife Trusts and RSPB. In 2020, he addressed the UK Climate Assembly, a parliamentary-commissioned citizens' assembly, briefing members on how the UK could reach net zero and on the links between climate change and biodiversity.
Parrot conservation
Spix's macaw (Cyanopsitta spixii), also known as (the little) blue macaw
Juniper is a recognised authority on parrots. He worked at BirdLife International on efforts to conserve rare species of these birds, co-launching its Protect the Parrots campaign in 1989 which first advocated for an EU trade ban of the species. In 1990, with Brazilian ornithologist Carlos Yamashita, Juniper located the last known Spix's macaw in the wild. In 2000, he also worked with the Oriental Bird Club in Thailand to help save the critcally endangered Gurney's pitta. His book Parrots of the World with Mike Parr was recommended by the Library Association as Reference Book of 1999.
Juniper was a member of the World Parrot Trust's scientific committee between 2003–07. In his 2003 book Spix's Macaw he criticised private holders of birds – such as Antonio de Dios's Birds International – arguing that Spix's macaws should be returned to their native Brazil for captive breeding and reintroduction to their declining natural habitat. He has claimed that the 2011 film Rio is based on his 2003 book.
Political campaigns
In January 2009, Juniper was selected as the Green Party's parliamentary candidate in the 2010 general election for the Cambridge constituency. He campaigned on combining economic and environmental renewal, arguing that the established approach of prioritising growth first and the environment later had failed. Radiohead's Thom Yorke, with whom he had worked on the Big Ask campaign, played a benefit gig in support. Juniper finished in fourth place, receiving 7.6% of the vote – an increase of 4.7 percentage points compared with the previous election. Prior to the 2015 general election, Juniper was one of several public figures who endorsed the parliamentary candidacy of Caroline Lucas.
In a 2014 TEDxWWF talk on bioeconomy, Juniper contended that economic systems must sustain the biosphere on which they depend, and that the economy should be understood as "a subset of nature, not the other way around". In his 2012 TEDxExeter talk, he argued that the economy should be regarded "as a wholly owned subsidiary of ecology and the natural environment".
Juniper was ranked 26th in an Environment Agency list of "the greatest eco-heroes of all time" (2006) and 25th in a Country Life list of the 100 "most influential figures shaping the countryside" (2005). In 2008, he was described as one of Britain's "most effective eco-warriors" by The Independent (2008) and one of the "top ten environmental figures of the last 30 years" by The ENDS Report (2008).
Juniper met Sue Sparkes during his first week at the University of Bristol and they married in 1990. They have two sons, Nye and Sam, and one daughter, Maddie, and live in Cambridgeshire. A keen birder since his youth, Juniper also enjoys fishing.
Publications
Juniper, Tony; Parr, Mike (1998). Parrots: A Guide to the Parrots of the World. Illustrated by Franklin, Kim; Restall, Robin L. Pica Press. ISBN 978-1873403402.
Juniper, Tony (2018). Rainforest: Dispatches from Earth's Most Vital Frontlines. Profile Books. ISBN 978-1781256374.
Juniper, Tony (2003). Spix's Macaw: The Race to Save the World's Rarest Bird. Fourth Estate. ISBN 978-1841156514.
Juniper, Tony (2008). How Many Lightbulbs Does It Take to Change a Planet? 95 Ways to Save Planet Earth. Quercus. ISBN 978-1847243713.
Juniper, Tony (2007). Saving Planet Earth: What is Destroying the Earth and What You Can Do to Help. Collins. ISBN 978-0007261833.
Charles, HRH The Prince of Wales; Juniper, Tony; Skelly, Ian (2010). Harmony: A New Way of Looking at Our World. HarperCollins. ISBN 978-0007348039.
Juniper, Tony (2013). What Has Nature Ever Done for Us? How Money Really Does Grow on Trees. Profile Books. ISBN 978-1846685606.
Juniper, Tony (2015). What Nature Does for Britain. Profile Books. ISBN 978-1781253281.
Juniper, Tony (2016). What's Really Happening to Our Planet? The Facts Simply Explained. Foreword by HRH The Prince of Wales. Dorling Kindersley. ISBN 978-1465445476.
Charles, HRH The Prince of Wales; Juniper, Tony; Shuckburgh, Emily (2017). Climate Change (The Ladybird Expert Series, 1). Illustrated by Palmer, Ruth. Michael Joseph. ISBN 978-0718185855.
Charles, HRH The Prince of Wales; Juniper, Tony; Shuckburgh, Emily (2019). Climate Change (Penguin Readers Level 3). Abridged ed. Penguin. ISBN 978-0241397862.
Juniper, Tony (2021). The Science of our Changing Planet: From Global Warming to Sustainable Development. DK. ISBN 978-0241560358.
Charles III; Juniper, Tony; Shuckburgh, Emily (2023). A Ladybird Book: Climate Change. Illustrated by Nandhra, Aleesha. Ladybird. ISBN 978-0241545669.
Juniper, Tony (2025). Just Earth: How a Fairer World Will Save the Planet. Bloomsbury Continuum. ISBN 978-1399410700.
↑"Eurostar arrives in Paris on time". BBC News. 14 November 2007. Retrieved 15 June 2026. Eurostar chief executive Richard Brown and Friends of the Earth executive director Tony Juniper named the first train Tread Lightly - after a Eurostar environmental campaign began earlier this year.
↑"International Sustainability Unit of the Prince of Wales' Charitable Foundation". UN Economic and Social Commission for Western Asia. Retrieved 16 June 2026. HRH's International Sustainability Unit was formed in 2010 to address critical challenges to development and the environment. The I.S.U. builds on the success of The Prince's Rainforests Project, established to find a solution to tropical deforestation, which resulted in international commitments of US$5 billion for immediate financing. The I.S.U. has since implemented programmes focusing on natural capital and resilience, with strands covering food, water and energy security; resource scarcity and depletion as potential conflict multipliers; preventing and reversing deforestation; responsible agricultural investment; and the Illegal Trade in Wildlife.
↑Juniper, Tony (18 June 2025). "This is the best climate solution I've come across yet". Comment Central. Retrieved 16 June 2026. Chair of global rainforest charity Cool Earth, Tony has worked on efforts to conserve tropical forests around the world for nearly 30 years.
↑"Governance". Fauna & Flora. Retrieved 14 June 2026.
↑Juniper, Tony (January 2014). "Must We Choose Between Ecology and Economy?". The Journal for Quality and Participation. 37 (1). Cincinnati: American Society for Quality: 21–22.
↑Juniper, Tony (2021). "A food system fit for the future". In Kassam, Amir; Kassam, Laila (eds.). Rethinking Food and Agriculture: New Ways Forward. Woodhead Publishing. pp.135–148. doi:10.1016/B978-0-12-816410-5.00007-4.
↑"Nitrogen inquiry: Oral evidence session". Environment and Climate Change Committee. Evidence session no. 12. UK Parliament: House of Lords. 23 April 2025. Retrieved 14 June 2026.