Double Nature

We are people reversing climate change. We draw down CO2 with natural climate solutions. We double nature and foster the fundamental conditions for the new nature economy.

Join us

Photo by Shane Rounce


Climate Cleanup Foundation is a non-profit funded by members.
Together we pioneer in doughnut accounting, seaweed, soil, plants, trees and rock weathering.

Tim Flannery
scientific advisor
John Liu
ecologist, filmmaker
Ernst van Zuijlen
Anke Sitter

We remove 1500 gigaton of CO2

To contain the climate crisis we need to remove 1500 gigaton of CO2. This happens to be about what is already stored by all plants and trees on earth. So to remove 1500 gigaton, we need to double nature. We reverse climate change by developing natural climate solutions in actual projects and we foster the fundamental conditions for entrepreneurial people to flourish in the new nature economy.
What we do

Double Nature


Fostering fundamental conditions

We foster the fundamental conditions for the 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

What we do



We do. Innovation needs experiment, therefore we pioneer solutions, particularly in seaweed and rock weathering. We develop this up to proof concept, so markets can take up what we start and grow in a distributed way.

trees | sand | seaweed


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

Carbon removal accounting standard


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.

Drawdown | 2040


Climate Cleanup
Soil as a natural climate solution
Climate Cleanup | 21 Sep 2020
Regenerating soil life is indispensable for reversing climate change. Soil expert Fransjan de Waard and green innovator Hillebrand Breuker will share their knowledge (more…)
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Climate Cleanup
Climate Cleanup Sargassum Team on Saint Martin
Climate Cleanup | 2 Sep 2020
Two members of our Sargassum Cleanup Expedition Team, Peter Lindeman and Fons Janssen, have safely arrived on Saint Martin on Augustus 31 2020. For two weeks they're observing the Sargassum seaweed (more…)
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More news

Join The 1500 Club

The 1500 Club supports our work. We are 1500 people taking responsibility for the removal the 1500 gigaton of extra CO2 in our atmosphere, using nature based solutions. The 1500 Club is by and for parents, entrepreneurs, investors, children, decision makers and anyone who wants to double nature and reverse climate change.


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