Open science
We publish our data pipelines, models and findings openly, so anyone can verify, reuse and extend them.
Green Horizon AI Scholars
Open AI for a living planet
We are a nonprofit that builds open-source artificial intelligence to help communities see environmental change early — starting with the coral reefs and coastal waters of Hong Kong.
Early warning
We turn raw environmental data into timely, localized insight — such as heat-stress alerts for reefs at risk.
Growing scholars
We mentor students and early-career researchers to solve real environmental problems with rigorous, responsible AI.
Our flagship project
ReefBeacon
ReefBeacon monitors coral bleaching risk and marine heatwave stress across Hong Kong's waters. It brings together open oceanographic data, clear dashboards and survey-photo analysis, helping scientists and volunteers act before, during and after heat-stress events.
How we work
Ingest
We collect openly available ocean data and keep every quality check transparent.
Analyze
Our models surface heat stress, bleaching risk and long-term trends.
Act
Maps, dashboards and alerts help researchers, divers and coastal communities respond in time.
Latest news
Inside ReefBeacon: from open ocean data to early warning
How a single temperature reading becomes an early warning — a look inside ReefBeacon's open pipeline, from public ocean data to maps, dashboards and alerts.
Welcome to the new Green Horizon AI Scholars website
Our new website is live — a home for project updates, field notes and plain-language explainers on open AI for the environment.
What is a marine heatwave, and why do corals care?
A plain-language explainer on marine heatwaves — how they differ from heatwaves on land, how they bleach corals, and why early warning matters.