Thursday, June 11, 2026

One Ocean, One Climate, One Future — Together: World Ocean Day

The World Ocean Day 2026 Action Theme this year is Strong Marine Protected Areas for Our Blue Planet

This theme will guide global action over the coming years. It brings together the momentum of recent multi-year action themes – Catalyzing Ocean-Climate Action and Protecting at Least 30% of Lands, Waters, and Ocean by 2030 (30×30) – and aligns powerfully with the recent ratification of the High Seas Treaty to protect biodiversity beyond national jurisdiction.

World leaders have committed to 30×30 both within national waters and across the High Seas – an area covering two-thirds of the ocean and nearly one-half of Earth’s surface.  Now they need to follow through!

These ocean waters regulate the climate, support extraordinary biodiversity, sustain livelihoods, and hold untapped scientific and medical potential.