Coastal States wield power over their surrounding seas, rights drawn from their shorelines. But as sea levels climb and coasts crumble, these maritime zones are shrinking. Adding to the crisis, ocean acidification and warming endanger vital coastal ecosystems that States must safeguard.

This escalating environmental upheaval demands a re-evaluation of international maritime law. This book delves into the complexities of establishing maritime boundaries and how coastal instability and fragile ecosystems impact boundary negotiations and legal resolutions.

Árnadóttir tackles critical issues like disappearing territory and shifting borders, utilizing core principles of public international law. She offers practical solutions for navigating future challenges, demonstrating how profound changes to the marine environment can warrant the termination or revision of existing maritime boundaries and associated agreements.