For the first time in history, the world (technically, 60 countries as of now) has agreed on a treaty to safeguard the high seas, those vast stretches of ocean lying beyond national borders. Covering nearly half the planet, these waters have long been vulnerable to overfishing, pollution, and exploitation without strong rules in place.

The new pact allows nations to create marine protected areas, require environmental reviews for deep-sea activities, and ensure that benefits from marine genetic resources are shared fairly. It’s being called a “Paris Agreement for the Ocean,” offering real tools to defend biodiversity and give ecosystems a chance to recover.

Of course, the ink on the treaty is just the beginning. Countries now need to ratify it at home and back it up with action on the water. Still, the breakthrough marks a turning point: a recognition that protecting the health of our oceans is essential to the health of our planet for future generations.