Coastal Adaptation Tipping Points 2D

A 2D cross-section and along-shore strip show a defended shoreline while sea level climbs under a chosen emissions scenario. Pick a starting adaptation strategy — do nothing, nature-based dune and marsh restoration, a hard seawall, or managed retreat — and watch the model's own risk math decide when that strategy's adaptation tipping point is crossed. With auto-switching on, the pathway escalates to the next stronger defense the moment overtopping risk passes 50%, paying a one-off construction cost each time; with it off, you can watch a locked-in strategy fail and flood risk climb unchecked, which is exactly the maladaptation risk that Dynamic Adaptive Policy Pathways planning exists to avoid. A live risk/cost history chart (drag it to scrub the year directly) sits below the cross-section, and an acceleration what-if slider lets you stress-test faster or slower sea-level rise than the base scenario.