Although sea level rise is taking place now in fractions of inches, the impact will accelerate, with mean sea level predicted to be 3 to 6 feet or higher by the end of the century. Rising seas are a relentless, visible indicator of a warming climate, which cannot be ignored or passed off as an anomaly. To help people visualize the magnitude of sea level rise, pilot and photographer Alex MacLean has captured illustrative aerial images along the coast from Maine to Texas. His images tell a story of the vulnerability of this coastline and highlight local strategies to mitigate and adapt to rising waters that will impact more than 100 million people. The photographs from this project document and advance our knowledge of these critical issues in order to stimulate more determined efforts, both individually and collectively, to stem carbon emissions.