Mountains, canyons, plains — these geological features are not only present on land, but also under the sea, where scientists have now charted them in incredible detail in the ocean surrounding Antarctica. The five-year project mapped 18.5 million square miles, and even revealed a new deepest point in the Southern Ocean, a depression lying 7,432 meters (24,383 feet) below sea level called the Factorian Deep. This study and others like it around the world are filling major scientific gaps in our understanding of what the ocean floor looks like, a key part of knowing how to foster ocean health. More mapping also enables us to make an even stronger science-backed case for marine protected areas. If you want to turn this positive progress into action, you can join us today as we call on world leaders to protect Antarctica and secure the largest act of ocean protection in history. We’re close to reaching our goal of 250,000 petition 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.
3,822,701 actions taken
Ocean protected
343,865 km²
Next milestone: 1,000,000
Trees planted
4,337,000
Next milestone: 6,000,000
Plastic removed
249,162 kg
Next milestone: 300,000
Corals planted
150,425
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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Get the latest on actions you can take with our campaigns and projects, and a dose of ocean and climate optimism.
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