We are so excited to tell you about a major victory that our supporters helped achieve. Yesterday at the UN Ocean Conference, the Colombian government announced it will create four new official marine reserves, including one expanding the fully protected Malpelo Sanctuary of Fauna and Flora. Colombia will now surpass the goal of protecting 30% of its waters eight years before the 2030 deadline! The initiative to protect 30% of the global ocean by the year 2030, referred to as 30x30, is a target that scientists have indicated is necessary in order to prevent irreversible loss of marine life. A huge thank you to everyone who made their voice heard on the petition to protect the Eastern Tropical Pacific marine corridor. And, of course, this win would not have been possible without the hard work and dedication of Colombia’s environmental, fishing, and maritime authorities, along with scientists, the private fishing sector, nonprofits, and the people of Colombia. With this remarkable action, Colombia will strengthen local fisheries, sustainable livelihoods, and the protection of marine biodiversity in its native waters and throughout the Eastern Tropical Pacific marine corridor. If you’d like to move another campaign to create sanctuaries close to victory, consider adding your name to the brand-new petition to expand the Pacific Remote Islands Marine National Monument 🌎 ⛵️
Only One is the action platform for the planet.
We’re on a mission to restore ocean health and tackle the climate crisis in this generation — with you.
We mobilize millions to win global campaigns.
We fund the world’s best ocean and climate solutions.
We tell stories that spark change for people and planet.
3,838,160 actions taken
Ocean protected
343,865 km²
Next milestone: 1,000,000
Trees planted
4,380,405
Next milestone: 6,000,000
Plastic removed
255,358 kg
Next milestone: 300,000
Corals planted
154,562
Next milestone: 150,000
Carbon reduced
18,095.8 t
Next milestone: 20,000
Our Approach
The most powerful solutions, accelerated.
We support only the most impactful projects and campaigns. They harness the latest science, prioritize the most affected communities, and are independently verified.
100% goes to the field
Every cent donated via our monthly plans goes to the field. We even cover card processing fees, so it really is 100% and we’re audited annually to prove it.
We prove all our impact
We work with policy experts and community leaders to bring you real-time campaign progress. We track every cent allocated to our trusted project partners.
We’re a U.S. nonprofit
We’re supported by some of the most trusted names in philanthropy. We value transparency and every year we publish our financials and an annual impact report.
Why now? Why you?
You have the power
Government action is too slow, but when millions of us mobilize together, leaders have to act. We tell you when and why campaigns matter and how you can help.
We know what to do
The answers are already out there. We just need to implement them — fast. We connect every cent you give to the world’s most impactful projects.
It’s easy to get started
Today’s crises can be overwhelming, but when we act together, small steps have big impact. We’ll help you get started with actions that resonate with you.
Our Commitment
Local projects, global impact.
Tackling climate change presents us with an incredible opportunity to accelerate sustainable development and build a fairer, more just world. We prioritize projects that benefit the most affected communities, and champion campaigns that fight for environmental justice.
Our Community
There is only one way to save our planet. Together.
Our strength comes from our network of partners and supporters. We connect with scientists, community leaders, innovators, and activists from around the globe. Together, we take a collaborative, research-driven approach to identify targeted, nature-based solutions that can sustain wide-reaching impact.
Join our mailing list
Get the latest on actions you can take with our campaigns and projects, and a dose of ocean and climate optimism.
Partner with us
FAQs
What is Only One?
Are you a registered nonprofit organization?
Is my donation tax-deductible?
What do your campaigns achieve?
What do I get with a monthly impact plan?
How do you maintain transparency?
Where is your team based?