A new digital mapping project is trying to get ahead of climate damage where it is most unforgiving: UNESCO World Heritage sites sitting along coasts. Researchers led by scientists from the University of East Anglia (UEA), Durham University, and the University of Cape Town created the Global Coastal Heritage (Glo-CoH) dataset. It is the first comprehensive digital map of UNESCO World Heritage sites located along coastlines less than 20 meters (66 feet) above sea level.

The “why now” is blunt. Sea level rise, flooding, and coastal erosion do not announce themselves politely to heritage managers, city planners, or national agencies. If your most iconic cultural assets are in low-lying coastal zones, you need location intelligence before the next storm season. Glo-CoH is built specifically around that reality by mapping UNESCO coastal World Heritage sites in the altitude band most exposed to those threats.

This matters because heritage protection is increasingly a data and coordination problem, not just a preservation one. Climate risks are spatial. Flood zones, erosion hotspots, and storm surge impacts vary block by block along the coastline. Without a clear baseline of where high-value sites are, it is hard to prioritize funding, design adaptation measures, or even coordinate between departments that often work in silos. A comprehensive digital dataset aimed at UNESCO sites below 20 meters above sea level reduces the “we think it is somewhere near the coast” guesswork and replaces it with a shared reference map.

There is also a governance angle. UNESCO World Heritage status can trigger specialized attention and funding pathways, but it does not automatically solve the underlying local exposure. Heritage agencies, planning departments, and regulators often have different risk models, different geographic tools, and different time horizons. A dataset like Glo-CoH can serve as a common baseline that supports better internal alignment. Even when organizations do not use the dataset directly in regulatory filings, having a defensible, comprehensive map can help them ask tougher questions earlier, like which sites face the greatest compounding risks and which adaptation options are feasible.

From a second-order perspective, this kind of mapping project can change how resources are allocated across boards and governments. When leaders can see that a defined set of UNESCO sites are located along coastlines less than 20 meters above sea level, budget discussions stop being generic. They can become more specific about resilience planning, monitoring, and protection strategies for the most exposed locations. The dataset does not replace scientific climate projections, but it gives decision-makers a starting point that is tangible: “These are the sites we must account for within this risk band.”

For executives in adjacent sectors, the implication is similar: climate adaptation increasingly depends on inventory. You cannot manage what you do not fully know. Whether you are funding coastal infrastructure, underwriting climate risk, or running disaster resilience programs, the industry is moving from broad hazard narratives to site-level asset mapping. Glo-CoH is a heritage-focused example of that broader shift, and it is targeted at some of the world’s most recognizable cultural landmarks.

Finally, the strategic stakes are global. Coastal heritage is a scarce asset category. Losing a site is not like losing a spreadsheet. Cultural continuity, tourism ecosystems, and national identity can all take a hit when physical heritage is damaged or inaccessible. By providing the first comprehensive digital map of UNESCO coastal World Heritage sites in the most vulnerable elevation range, the Glo-CoH dataset aims to make protection efforts more timely and more coordinated. For leaders who think in terms of risk reduction and long-term stewardship, that is the core value: compress the time between “we know climate threats exist” and “we can precisely locate what is at risk and plan accordingly.”