Put carbon back, and life comes back.

Everything we do begins with a simple observation we call the carbon proxy hypothesis. Where carbon comes back to the living world, life comes back with it. Because healthy soils and bio-based buildings literally hold carbon at scale, CO₂ becomes a powerful measure of the health of our ecosystems — and of our economy. Carbon you can count; life you can feel. One is a reliable proxy for the other.

Count the carbon, and you hold a workable handle on the return of life. That handle is what makes this real work measurable, fundable, and able to scale.

This matters because life is disappearing on our watch. Since 1970, the average size of monitored wildlife populations has fallen by roughly 70%. In protected nature reserves, the biomass of flying insects — the base of countless food webs — has dropped by more than 75% in a single generation. Much of this has happened inside one human lifetime.

This is not a side effect of the climate crisis. It is the crisis. And, unlike much else, it is reversible. Bring carbon back to the land, the seas and the things we build, and you create the conditions for life to recover.

We choose to take responsibility for that recovery — for the unfolding of life on Earth itself. We call this conscious evolution: life grown aware enough of itself to tend itself on purpose. Carbon removal is the doorway in. It is easy to understand, it can be measured, and — through carbon finance — it can pay for the return of life into the everyday economy.

If one short film holds the whole idea, it is this one — a reminder that the most powerful carbon-capture machine ever built is also the most ordinary.

Nature Now · Conservation International, 2019 · 3:39. More films are gathered in Watch & read at the foot of this page.

Strip away the jargon and one question remains: where can carbon go, and how do we get it there? There are four great storehouses — and a growing community of farmers, builders, entrepreneurs and scientists learning to fill them. Filling them is how ecosystems get the room to bounce back, and how the built world turns from a carbon source into a carbon sink.

This is not theoretical. Pioneers are already at work:

• Carbon farmers — arable and livestock farmers building soil carbon with cover crops, compost, lighter tillage and fibre crops.
• Bio-based builders — using flax, hemp and straw to lock CO₂ into buildings for the long term.
• Peat-meadow managers — raising water tables so peat soils stop burning away into the sky.

Until recently they worked in isolation, without a shared way to measure or fund the carbon — and the life — they bring back. That is the gap this page is really about.

Four short films, one for each domain — proof that this is practical, not theoretical.

Here is the quiet superpower of nature-based removal: because it works through living systems, it pays off across almost every policy goal at once. The same hectare of healthier soil, restored peat or bio-based building does many jobs:

• Nitrogen — less fertiliser; rewetted peat cuts N₂O emissions.
• Biodiversity — restored habitats through reforestation and wetland recovery.
• Water — better quality and more water held in the landscape (biochar, peat).
• Circular economy — bio-based materials replace fossil raw materials.
• Climate adaptation — peat restoration prevents land subsidence (an estimated €22 billion saved over time).
• Farm income — every 1% more soil carbon is worth around €180 per hectare per year in extra yield.

One action, many returns. That is why carbon is such a useful organising principle: aim at carbon, and you hit climate, nature, water and rural livelihoods together.

You will meet a lot of language around this work — CDR, NbS, negative emissions, sequestration, offsets. It can feel complex. Here is the honest map, and where we sit on it.

A tonne of CO₂ in the atmosphere does real damage — and a tonne taken back out avoids that damage. So a removed tonne is worth, at the very least, the harm it prevents. Governments are starting to put that number on paper: the City of Utrecht uses €1,100 per tonne; the Province of Utrecht uses €875, following the German Environment Agency's calculation of the social cost of carbon. And the science keeps pushing the figure higher: a 2026 Nature study that traces a tonne's damage back to its source finds that one tonne emitted in 1990 will cause roughly $1,840 more in global damage through 2100 (a wide range of $500–5,700). Seen this way, the numbers get large fast — and they point the other way, toward value created rather than damage done.

Put a credible price on a removed tonne, and carbon finance becomes a way to finance the return of life into the economy — a kind of transition finance, moving money from extraction toward regeneration. But a price only works if a tonne can be trusted. That takes three steps:

Oncra — Open Natural Carbon Removal Accounting — is the Dutch system that runs this chain: it quantifies and certifies real removal across all four domains, in line with and as an implementation of the EU CRCF, and records every tonne on a public registry anyone can inspect. It is the calculation layer and the funding layer for everything on this page — the connecting link between the pioneers and the finance that can scale their work.

A library to go further — films, books, the cornerstone science, the EU rulebook, Dutch policy, and the best explainer for each domain. Tap a heading to open it.