From Paper to Pixels: How NOAA Maps Revolutionized Oil Spill Response
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•  September 22, 2026 •  

Detailed section of an Environmental Sensitivity Index (ESI) map of Clinton Harbor and Long Island Sound.

When an environmental emergency strikes a coastline, responders are faced with a race against time. Knowing which areas to protect first can mean the difference between a minor impact and an ecological catastrophe. For over four decades, Environmental Sensitivity Index (ESI) maps have served as the definitive guide for these high-stakes decisions.

Developed and updated by NOAA’s Office of Response and Restoration, ESIs have evolved from voluminous paper atlases into highly advanced, interactive digital geodatabases. By mapping coastal vulnerabilities before a disaster occurs, ESIs ensure that emergency response is both rapid and targeted to protect the most sensitive environmental, cultural, and human-use resources. [...] Continue Reading

The NOAA Office of Response and Restoration (OR&R) serves coastal communities, their economies, and the environment by helping to ensure they are clean and healthy to the impacts of hazards like oil, chemicals, and marine debris.

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