Double Nature

We are people reversing climate change. We restore carbon dioxide from oceans and the atmosphere. We double nature by fostering fundamental conditions for the regenerative economy.

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Climate Cleanup Foundation is an independent entrepreneurial non-profit funded by members.
Together we pioneer systemic interventions to enable carbon returning on land, in oceans,
rocks and constructions.

Navied Tavakolly

Circular Economy Ambassador

Ruud Koornstra

Board member

Karianne Lievaart-Peterson

Rotary Bathmen de Schipbeek

Matthea de Jong

Warming Up – Tolhuistuin

Double Nature

We remove 1500 gigatons of CO2 by doubling nature

To contain the climate crisis we need to return 1500 gigatons of CO2. This happens to be about what is already stored by all plants and trees on earth. So to return 1500 gigatons, we need to double nature. We reverse climate change by developing Nature-based Solutions and we foster fundamental systemic conditions for entrepreneurial people to flourish in the regenerative economy.
What we do

Fostering fundamental conditions

We foster the fundamental conditions for the regenerative new nature economy. Natural Climate Solutions can provide over 30% of the solution to reverse climate change, but receive not even 3% of funding. We are closing this gap by creating the conditions for entrepeneurial people and organisations to flourish.

Read our green paper


We do. RD&D are much needed for natural carbon returning, because potential is huge and largely untapped. We develop in practice as well as in our Natural Climate Solutions Lab. 

Ocean | Land | Rock


We foster the fundamental conditions for people to thrive in the new nature economy.

Open Natural Carbon Return Accounting (Oncra)


We show the world what we want. We envision how beautiful the world will be in a new nature economy. We’re always fact-based: we show what can be done. And then we do.

Regeneration | Drawdown | 2040


Launch ONCRA at the COP27 in Egypt

Launch ONCRA at the COP27 in Egypt

ONCRA is out in the world. We launched ONCRA live from COP27 with co-founders and removers, from Bamboologic, The Seaweed Company, Scave, Boer in Natuur and greenSand. Take a look at the recording of the launch on our You Tube Channel. Join the ecosystem at,...

Tweets Climate Cleanup

Looking forward to this movie. let’s #doublenature. Let’s #regenerate join the premiere! 🌱🌱 @_regenerators

Looking forward to this movie. let’s #doublenature. Let’s #regenerate join the premiere! 🌱🌱 @_regenerators


Thanks for sharing #zeewierwijzer 🌱🌱

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We work with a network of great entrepreneurial people and organisations. If you would like to join us, just drop us a line.