The A.N.T
The world's first forecast-triggered anticipatory climate finance mechanism.
Climate disasters are becoming more frequent, more severe, and more expensive. Studies show that interventions before disasters strike are the most cost-efficient way to reduce loss and damage. According to the WFP and the FAO, every $1 invested in anticipatory action yields $7-$34 in avoided costs. The UNDP states that even just 24 hours’ worth of early warning can reduce up to 30% of a disaster’s impacts. Yet financial protection continues to arrive after damage has already occurred.
The Anticipatory Natural Trigger (ANT) changes that.
Developed by GreenAnt, the ANT is a new class of anticipatory finance that can be issued either as a forecast-based weather derivative or anticipatory parametric insurance. It transforms trusted weather forecasts into immediate financial protection. Instead of waiting for floods to happen, the ANT releases liquidity before disaster strikes, giving organizations, businesses, and communities time to act when it matters most.
A new approach to climate protection
Traditional insurance is built around assessing losses after an event. Claims must be verified, damage assessed, and payments processed. This process can take weeks or months.
The ANT is fundamentally different.
It is a forecast-triggered financial instrument that activates automatically whenever independently verified weather forecasts indicate that rainfall is expected to exceed flood or drought thresholds within a defined area. These sophisticated, dynamic disaster thresholds are defined by GreenAnt’s Desidera[link] platform and linked to predefined payout values. Unlike traditional insurance, these payouts do not compensate for disaster-driven losses. Instead, they cover preemptive mitigation protocols that beneficiaries can take to protect their lives, livelihoods, and assets and reduce ultimate loss and damage.
Because the trigger is based on objective forecast data rather than damage assessments, payouts can be executed within hours and received days before a disaster strikes, enabling proactive action instead of reactive recovery.
The result is faster access to capital, greater transparency, improved disaster response, and significantly lower operational complexity.
How the ANT works
Every ANT contract is built using GreenAnt's proprietary climate intelligence platform, Desidera.
Desidera combines satellite imagery, hydrological modeling, meteorological forecasts, AI, and high-resolution Digital Twins to identify the accumulated rainfall levels, corrected for other local geophysical and hydrological conditions, that lead to flooding and droughts in a specific location.
These scientifically calibrated “rainfall-to-flood thresholds” and “rainfall-to-drought thresholds” become the foundation of each ANT contract.
Here’s how it works:
1. Model the risk:
Desidera identifies localized flood or drought thresholds for a client’s specific area, down to a single address.
2. Structure the contract:
GreenAnt uses Desidera’s disaster thresholds to create a forecast-based index tailored to the area of interest. Each index will serve as the basis for the pre-defined payouts, with a payout being linked to a specific threshold (for example, a forecast of 500ml rainfall over 24 hours triggers fund distribution). The client pays a partner capacity provider a small premium. The capacity provider then issues the official derivative or parametric policy contract structured around the index.
3. Monitor forecasts:
Desidera automatically ingests weather forecasts around the area of interest to continuously monitor conditions and scan for its thresholds.
4. Trigger automatically:
If a disaster threshold is forecasted, Desidera recognizes it, and the ANT activates automatically via a signal from Desidera’s tracker. The partner capacity provider that issued the contract receives the signal and immediately distributes the pre-defined payout.
5. Release liquidity:
Funds are paid within hours, allowing beneficiaries to take early action before flooding occurs.
No claims adjustment. No loss verification. No uncertainty.
Just transparent, preemptive financial protection that builds climate resilience while saving costs for all involved.
Built for anticipatory action
Early action saves lives, protects livelihoods, and reduces economic losses.
The ANT provides organizations with the capital needed to act before disasters unfold, expanding access to protection in regions where conventional insurance struggles to operate.
Humanitarian anticipatory action programs
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Government disaster preparedness funds
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Climate resilience financing
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Agricultural protection
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SME and supply chain resilience
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Microinsurance and embedded insurance products
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Industrial flood risk management
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Corporate climate risk transfer
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Humanitarian anticipatory action programs | Government disaster preparedness funds | Climate resilience financing | Agricultural protection | SME and supply chain resilience | Microinsurance and embedded insurance products | Industrial flood risk management | Corporate climate risk transfer |
Potential applications include:
Humanitarian anticipatory action programs
Government disaster preparedness funds
Climate resilience financing
Agricultural protection
SME and supply chain resilience
Microinsurance and embedded insurance products
Industrial flood risk management
Corporate climate risk transfer
Stakeholders in each sector can design tailored mitigation plans to determine the most effective way to deploy pre-determined, preemptive ANT funds and reduce loss and damage. Whether protecting vulnerable communities or critical business operations, the ANT delivers capital when it has the greatest impact. Not after it is too late.
Powered by Desidera
At the core of the ANT is Desidera, GreenAnt's proprietary climate intelligence platform. Unlike conventional flood models that rely on broad regional estimates, Desidera creates highly detailed Digital Twins that capture local terrain, hydrology, soils, land cover, and historical flood behavior at resolutions of just a few meters.
This enables Desidera to identify location-specific flood triggers with exceptional accuracy.
Every threshold is calibrated and validated against satellite and meteorological data, creating a transparent and scientifically grounded foundation for financial products.
The result is a new generation of climate intelligence that connects environmental science directly to financial decision-making.
The ANT has been designed to integrate seamlessly into existing financial infrastructure.
Whether structured as a short-duration, over-the-counter weather derivative or an anticipatory parametric insurance product, each contract enables insurers, reinsurers, institutional investors, and capacity providers to participate using familiar legal and operational frameworks while accessing a new category of climate-linked risk.
For issuers of traditional, loss-based insurance, the ANT can serve as a complement to your current offerings. Because the ANT reduces post-event loss and damage, it can be issued as part of a package to your clients, reducing claims and lowering the payouts you need to issue after a disaster has taken place.
Designed for capital markets
For capital providers, the ANT offers:
Short-duration exposure
Transparent and objective trigger mechanisms
Diversified climate risk
Low operational complexity
Scalable portfolio construction
Measurable climate impact
Proven through real-world modeling
GreenAnt has validated the ANT using multiple years of hydrological, meteorological, and satellite observations across independent flood basins in Myanmar.
For issuers of the ANT, extensive simulations demonstrate that diversified ANT portfolios can deliver:
Approximately 6% modeled annual returns
Around 3-4% annual volatility
Maximum drawdowns of approximately 12%
Strong diversification across independent hydrological systems
The results demonstrate the potential for our tool to combine financial resilience with measurable social impact.
Closing the global protection gap
Across the world, climate risks are increasing faster than traditional insurance can adapt. Donor hesitancy and a volatile geopolitical landscape put humanitarian contingency funds at risk.
Millions of households, businesses, and public institutions remain exposed because protection is too expensive, unavailable, or arrives too late.
The ANT’s new model for climate finance unlocks new streams of capital for risk managers of all stripes. With the ANT, contingency funds no longer need to cover the entire projected cost of a disaster. Instead, they need only cover a premium that’s just a fraction of the total available ANT payout distributed in the event of a disaster. By connecting climate intelligence with financial markets, GreenAnt is helping build a future where at-risk communities and enterprises are actually empowered by these financial markets, where the most vulnerable are not blocked from protection due to high exposure, and where resilience begins before disasters happen.
Ready to build anticipatory protection?
Whether you are an insurer, reinsurer, NGO, development bank, government agency, fintech, or institutional investor, GreenAnt can help design forecast-triggered protection tailored to your region and risk profile.
Get in touch to explore how the ANT can support your climate resilience strategy - or how you can partner with us and issue this game-changing tool to your own network.