Marine conservation

Oceans cover more than 70% of Earth’s surface and support the food, climate, and biodiversity systems that billions of people depend on. This archive tracks real progress in marine conservation — from expanding protected areas and restoring coral reefs to reducing plastic pollution and rebuilding fish populations. Each story focuses on what’s working and who is making it happen.

Aerial view of a turquoise French Polynesian atoll for an article about French Polynesia marine protected area, for article on debt-for-nature swap, for article on coral reef protection

$35 million debt-for-nature deal aims to protect Indonesia’s coral reefs

By / / Good News For Humankind

A $35 million debt-for-nature swap between the U.S. and Indonesia will channel money that would have gone toward sovereign debt payments into coral reef protection over the next nine years. It’s the first agreement of its kind focused specifically on coral, and it targets nearly two million acres of reef across the Coral Triangle — the most biodiverse marine region on Earth, holding close to two-thirds of all known coral species. Indonesian nonprofits and local communities will guide the work, with a grant committee including civil society voices. As warming oceans threaten reefs worldwide, deals like this offer a model for tying debt relief to the ecosystems millions of people depend on.

Ocean water, for article on law of the sea treaty, for article on ITLOS climate ruling

Island states win historic climate case in world oceans court

By / / Good News For Humankind

Nine small island nations just won a landmark climate ruling from the world’s top ocean court, with judges declaring for the first time that greenhouse gases absorbed by the sea legally count as marine pollution. The coalition — including Tuvalu, Antigua and Barbuda, Vanuatu, and Palau — argued that countries have binding obligations under the Law of the Sea to limit warming to 1.5°C, and the tribunal agreed. Though the opinion is advisory, it’s already shaping two pending climate cases at the Inter-American Court of Human Rights and the International Court of Justice. For nations whose very existence is threatened by rising seas, it’s a reminder that patient diplomacy and international law can still give the smallest voices real weight in the global climate fight.

Beach at sunset, for article on ocean plastic cleanup

China announces 3-year plan to combat ocean litter and clean up coastal areas

By / / Good News For Humankind

Ocean plastic cleanup just got a major boost: China is targeting 65 bay areas along its 18,000-kilometer coastline in a coordinated three-year campaign, with four ministries working together to set up permanent cleanup systems by 2027. What makes this different from past efforts is the focus on stopping waste before it reaches the sea — local governments will build full chains to monitor, intercept, and process garbage flowing through rivers and storm drains inland. Coastal cities like Xiamen and Shenzhen have shown daily cleanup operations can work; now that model is going national. With more than 171 trillion plastic pieces estimated to be floating in the world’s oceans, decisive action from a country this large sends a powerful signal as global plastics treaty talks continue.

School of fish, for article on Peru marine protected area

Peru approves the creation of long-awaited marine protected area

By / / Good News For Humankind

Peru’s new Grau Tropical Sea National Reserve safeguards 115,675 hectares of ocean where the warm Eastern Pacific meets the cold Humboldt Current — a collision the IUCN ranks among the 70 most vital places on Earth for marine biodiversity. Humpback whales birth their calves here, hammerhead sharks patrol the reefs, and scientists keep finding species entirely new to them. The reserve also matters for people: of the 35 main fish species landed by Peru’s artisanal fleet, 24 come from these waters. Created after more than a decade of advocacy by fishers and scientists, the designation is a real step toward the global goal of protecting 30% of the ocean by 2030 — and a reminder that lasting protection still depends on enforcement and political will.

Whale tail, for article on sei whale return

Sei whales reappear in Argentine waters after nearly 100 years

By / / Good News For Humankind

Sei whales are back in Argentina’s coastal waters for the first time in roughly 100 years, after industrial whaling wiped them out in the 1920s and 30s. These blue-grey giants are the third-largest whales on Earth and among the fastest, which once made them prime targets for hunters. Their slow return — the species reproduces just once every two or three years — is a quiet testament to the 1946 international whaling treaty that gave them room to rebuild. Global numbers now sit around 50,000 and are trending upward, though sei whales remain endangered. Their reappearance off Patagonia carries a hopeful lesson for marine conservation everywhere: give a species enough time and enough protection, and it can find its way home.

Salmon in stream, for article on U.S. overfishing list

The number of fish on U.S. overfishing list reaches an all-time low

By / / Good News For Humankind

Overfishing in U.S. waters just hit a hopeful milestone: 94% of tracked fish stocks are no longer being overfished, the best result since federal record-keeping began. Atlantic mackerel populations off the Gulf of Maine and Cape Hatteras have recovered enough to come off the overfishing list, alongside Gulf of Mexico cubera snapper and a Washington coast coho salmon stock that holds deep meaning for Pacific Northwest tribal nations. What’s most encouraging isn’t any single year’s numbers but the steady downward trend across multiple years, suggesting real structural progress. With roughly 3.3 billion people worldwide relying on seafood as a primary protein source, getting fisheries right is one of the most consequential food-system stories on the planet — and the U.S. is showing it can be done.

School of fish, for article on bottom trawling ban

Greece becomes first E.U. country to ban bottom fishing in marine protected areas

By / / Good News For Humankind

Greece’s bottom trawling ban makes it the first European Union country to shut this destructive practice out of its marine protected areas, covering stretches of the Aegean and Ionian seas. That matters because trawling drags weighted nets across the seafloor, tearing up ancient seagrass meadows and coral that can take centuries to grow back. Prime Minister Kyriakos Mitsotakis put it plainly: the ocean has given humanity so much, and we have not been kind in return. The move offers refuge to species like the endangered Mediterranean monk seal, and it directly answers critics who say protected areas without fishing limits are “paper parks.” For the rest of Europe, Greece has just turned a long-debated idea into a real precedent.

Aerial view of open ocean waves for an article about the E.U. ocean investment of €3.5 billion

The E.U. makes its biggest-ever ocean investment at €3.5 billion

By / / Good News For Humankind

The European Union’s €3.5 billion ocean conservation pledge, announced at the Our Ocean Conference, is the largest single ocean commitment any government has ever made at the forum. The package funds marine pollution reduction, sustainable fisheries reform, blue economy innovation, and international ocean governance — including support for implementing the landmark High Seas Treaty. For coastal communities across Europe, the investment represents real economic stakes, not just environmental symbolism. The scale and specificity of the commitment sets a new bar for wealthy nations and signals that ocean protection can move from aspiration to action.

Streets of Palau Koror and coves of coral reefs, for article on High Seas Treaty

Palau is the first nation to ratify treaty to protect high seas

By / / Good News For Humankind

Palau just became the first country in the world to ratify the High Seas Treaty, the international agreement aimed at protecting the two-thirds of the ocean that lies beyond any nation’s borders. This tiny Pacific nation of around 340 islands has long led by example, having already shielded 80% of its own waters from fishing and mining — the highest share of any country on Earth. Once 60 nations ratify, the treaty becomes binding law, opening the door to marine protected areas, environmental reviews, and shared benefits from deep-sea discoveries. Chile and the Maldives are close behind, with advocates hopeful the threshold could be met by mid-2025. Palau’s message is simple and powerful: the ocean has no borders, and protecting it is a shared inheritance.

California coast, for article on Indigenous Marine Stewardship Area

First ever U.S. Indigenous Marine Stewardship Area declared in California

By / / Good News For Humankind

Indigenous marine stewardship just took a historic leap: three sovereign tribal nations along California’s northern coast have declared nearly 700 square miles of ocean and coastline under their own protection — the first Indigenous Marine Stewardship Area in U.S. history. The Tolowa Dee-ni’ Nation, the Resighini Tribe, and the Cher-Ae Heights Indian Community didn’t ask permission. They drew on their own authority to safeguard kelp forests, estuaries, salmon, and the surf smelt that Jaytuk Steinruck describes in songs going back forever. Their work alone covers 13% of California’s goal to protect 30% of its lands and waters by 2030. It’s a powerful reminder that the people who’ve stewarded these places for millennia are still leading the way home.