Take part in the Million Mangrove Challenge 🌱

Help us plant 1,000,000 trees


We’re an open book and prove all of our impact.

As part of our commitment to transparency, we publish regular updates on all of our projects and campaigns.

Ryan Borne / Coral Gardeners

100% Model

We track all of our impact — every tree planted, every gram of carbon pollution removed, every action taken on every campaign. We send 100% of funds donated to solutions directly to the field and update our dashboard to prove this every quarter.

Coming soon

2022 Impact Report

We publish an annual report on our impact. From ocean protection milestones reached, to locally rooted solutions put into action, we carry out an in-depth health check of the movement. We highlight our trusted partners, and reflect on how we can do better.

Anita Kainrath


Thomas Horig

The Current

The Current is a group of conscientious, diverse, and mission-aligned supporters who take a real interest in the vision of Only One and support the team’s work. Their contributions fund our operations and strategic work.

Get in touch


What is Only One?

Are you a registered nonprofit charity?

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?