We have some exciting news. Starting on February 20, leaders from around the world will meet at the United Nations, where — after nearly 20 years of negotiations — they could finalize one of the most important protection measures in ocean history: the High Seas Treaty. We’ve been doing everything we can to move the treaty forward, which is why Only One is teaming up with Greenpeace, the High Seas Alliance, RISE UP, and Jane Fonda to deliver our High Seas petition to key decision-makers at the start of the conference. But in order to maximize our impact and secure the future of our ocean through this treaty being agreed, we need your help to raise the volume on this effort to new levels. Add your name to the High Seas petition — we are so close to reaching our goal of 200,000 signatures.
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.
3,826,072 actions taken
Ocean protected
343,865 km²
Next milestone: 1,000,000
Trees planted
4,340,785
Next milestone: 6,000,000
Plastic removed
249,738 kg
Next milestone: 300,000
Corals planted
150,822
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.
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