In 2019, AXA launched a $175 million climate and biodiversity fund. Within a year, $41.5 million had been allocated to projects targeting measurable environmental outcomes

In 2019, AXA put $175 million into an experiment that was harder to measure than it first appeared. The idea was not simply to invest in companies that called themselves green. AXA wanted private capital to go toward projects dealing with climate change and biodiversity loss, while still pursuing market-rate financial returns.

Within the first year, $41.5 million had been committed. The money was already moving into very different places and problems: agroforestry in Madagascar, groundwater and habitat conservation in California, and products designed to make vulnerable communities more resilient to climate-related disruption.

What made the fund unusual was the demand for measurable results. AXA wanted to know what the money was actually changing.

Why did AXA put investment money into biodiversity?

The decision grew out of a broader realization inside finance: damage to nature does not stay in nature.

A degraded forest can affect water and agriculture. A stressed water system can become an economic problem. The loss of natural protection against floods and storms can eventually show up as a cost for communities, businesses and insurers.

AXA and WWF had examined those links in a joint report, looking at the societal, economic and financial consequences of biodiversity loss and climate change. The fund followed from that work.

For AXA, this was particularly relevant. An insurer spends much of its business thinking about risk before it becomes a loss. Biodiversity was increasingly being viewed through that same lens.

The question was no longer only how much nature was being lost. It was also what that loss could mean for the economy.

What did AXA actually ask its investments to deliver?

AXA gave the fund four main measures.

It wanted to track emissions avoided, natural capital conserved, critical habitat protected and vulnerable people helped. Those measures were deliberately different because the investments themselves were different.

The fund set long-term targets around them, including 8 million tonnes of avoided carbon emissions, 8 million hectares of land under improved management and 800,000 hectares of critical habitat protected, alongside a goal of benefiting one million vulnerable people.

The numbers were targets, not accomplishments at launch. That distinction matters. A fund can announce an ambitious impact objective much faster than it can prove that the objective has been achieved.

AXA was therefore trying to build measurement into the investment process from the start.

What did $41.5 million buy?

The first investments make the strategy easier to understand than the fund's mission statement does.

In Madagascar, one project backed sustainable agroforestry and cocoa production. The expected impact included more than 2,900 hectares under sustainable management for biodiversity and soil conservation, including 528 hectares of critical habitat supporting lemurs. The project was also expected to create more than 120 jobs.

The details matter because they show that the investment was not simply about preserving a piece of forest.

There was an agricultural business attached to it. There were local jobs. There was soil conservation. And there was habitat for endangered species.

The environmental outcome and the economic activity were being considered together.

California presented a completely different problem. The fund invested in a strategy dealing with water and climate pressures in the San Joaquin Valley, one of the most important agricultural regions in the United States. The expected outcomes included addressing 30% of the area's annual groundwater overdraft, 24% of its migratory bird habitat needs and 28% of identified land restoration needs.

A water investment may not sound like a biodiversity investment at first. In California, the two can be difficult to separate.

Groundwater supports farms. Farms shape the landscape. The landscape provides habitat. Changes in water availability can therefore move through the entire system.

That was the kind of connection AXA was trying to capture.

Why was measuring nature harder than measuring carbon?

Carbon has a number that can be put into a spreadsheet. Biodiversity is much messier.

One tonne of avoided emissions can be counted. A restored habitat involves species, land quality, ecological conditions and time. The value may also depend on what happens around the project.

AXA therefore had to work with different types of evidence and different measurements across its investments.

The fund relied on science-based research and established frameworks, including work associated with the IPCC, IPBES, the UN Sustainable Development Goals and WWF. AXA also conducted visits to project regions and worked with project sponsors and other stakeholders.

That process was important because impact investing has an obvious weakness: a good intention is easy to claim.

Where did financial returns fit into the experiment?

The environmental case was never supposed to replace the investment case. AXA described the fund as a private equity vehicle backing businesses that could deliver intentional and measurable positive outcomes while targeting market-rate returns.

That creates a tension that does not disappear simply because a project has an environmental benefit.

A restored wetland may be extremely valuable to a community without producing a conventional financial return. A groundwater project may protect an ecosystem while depending on complicated local economics. A biodiversity benefit can take years to become visible.

Private investors still have to decide what an asset is worth, how it will generate returns and what risks could undermine the investment.

AXA was trying to make those questions coexist with another one: what happens to the environment because this money was invested?

What was really different about the fund?

The most interesting part was not the $175 million itself. It was the attempt to make nature part of the investment decision before the money was deployed.

AXA's framework required the fund to identify intended outcomes and track them. That sounds straightforward, but it changes the conversation. Instead of asking whether an investment is “green,” investors can ask how much land it protects, what emissions it avoids, which habitats it affects or how many people become less vulnerable.

That does not make the measurement perfect. It does make the claim more testable.

The fund also reflected a broader change in the way financial institutions were beginning to think about biodiversity. AXA later described biodiversity loss as a risk to society and the economy and moved toward developing metrics that could help investors assess natural-capital impacts.

Did the experiment work?

The first year could not answer that question. The fund had a long investment horizon, and many of the environmental outcomes were expected to develop over years rather than months. The $41.5 million committed in its first year was evidence that capital could be directed toward these projects. It was not proof that every environmental target would ultimately be met.

AXA later said the fund's size was doubled to $350 million in 2020, suggesting that the strategy continued beyond its original $175 million commitment.

The more lasting question is what investors do with the idea.

For decades, forests, wetlands, soil, water and biodiversity were often discussed as environmental assets while financial markets focused on companies, buildings and infrastructure. AXA's fund tried to bring those two conversations closer together.

That shift has consequences.

If a forest protects a watershed, if a habitat supports an agricultural economy, or if healthier natural systems reduce vulnerability to climate shocks, then losing those systems can carry an economic cost even when no one has written that cost onto a balance sheet.

AXA's $175 million fund was an early attempt to put money behind that idea.

The difficult part was never finding projects that sounded good. It was proving, over time, that the money had changed something measurable — and that investors could still make the numbers work.