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.

Piotr Krzeslak

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.

3,837,596 actions taken

Ocean protected

343,865 km²

Next milestone: 1,000,000

Trees planted

4,379,365

Next milestone: 6,000,000

Plastic removed

255,204 kg

Next milestone: 300,000

Corals planted

154,460

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.

Tom Vierus

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.

Eden Reforestation Projects

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.

Project selection process

Campaign focus areas

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.

Shawn Heinrichs

Toby Matthews

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?

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Featured experts

Jennifer Howard

Vice President of Conservation International, Board Member of Only One

A leading international scientist, Jennifer focuses on implementing scalable mechanisms to conserve ocean ecosystems as a means to protect vulnerable coastal communities, combat climate change, and conserve biodiversity.

Angelique Pouponneau

Policy & Strategy Advisor to the Chair of the Alliance of Small Island States

A lawyer and ocean and climate advisor in the Seychelles, Angelique holds an LLM in Environmental Law specializing in the law of the sea and natural resources. She is currently pursuing a PhD in Law and is a policy and strategy advisor on ocean and climate matters to the Chair of the Alliance of Small Island States.

Inka Cresswell

Wildlife Filmmaker, Marine Biologist, Social Influencer

Fighting to change the way we interact with the natural world, Inka’s award-winning work educates and inspires a new generation of conservationists, arming them with the tools they need to spread awareness and drive real impact for the planet.

John Weller

Photographer, Writer, Filmmaker, Senior Fellow of Only One

An acclaimed photographer, filmmaker, and writer, John has worked in defense of the ocean for nearly 20 years. He helped lead the global campaign to secure the world’s largest marine protected area in the Ross Sea, Antarctica.

Kalina Grabb

Sea Grant Knauss Fellow in Marine Policy at the NOAA Ocean Acidification Program, Ph.D. from MIT-WHOI Joint Program

A chemical oceanographer who focuses on coral reef health and immunity, Kalina is passionate about using science to inspire, inform, and impact the conservation of our ocean and coastal communities.

Shawn Heinrichs

Photographer, Conservationist, Co-Founder of Only One

Fueled by his passion for the ocean, Shawn fuses dramatic imagery with intimate and thought-provoking stories to connect the global community to threatened marine species and habitats.

Sian Owen

Director of the Deep Sea Conservation Coalition (DSCC)

Sian has led the global strategy and coalition coordination for the DSCC since 2011. Her role draws on decades of experience building and managing transcontinental, complex multi-disciplinary teams to deliver on global social, economic, and environmental policy goals.

Ted Janulis

Founder & Principal of Investable Oceans

Ted has served in various executive positions, including CEO, at financial institutions involved in capital markets, banking, and asset management over a 30+ year business career. The ocean has been one of Ted’s passions since he was young, including a life-changing year after graduating from college with the Our World-Underwater Scholarship Society.