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The report warns that sea level rise puts hundreds of thousands of US coastal properties at risk of chronic inundation, potentially leading to a collapse in real estate values and a significant erosion of local tax bases. Using a high sea level rise scenario, the analysis projects that by 2100, nearly 2.5 million properties valued at $1.07 trillion today will be at risk. The authors argue that current financial markets and government policies mask these risks, creating a 'narrowing window of opportunity' for communities to adapt. The report highlights particular vulnerabilities for low-income populations, the elderly, and specific states like Florida and New Jersey, while advocating for updated flood maps, transparent risk disclosure, and a shift away from subsidized insurance and disaster aid that encourages rebuilding in high-risk areas.