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.

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.

Leopard shark / Zebra shark, for article on zebra shark rewilding

Rewilding program ships eggs around the world to restore Raja Ampat zebra sharks

By / / Good News For Humankind

Zebra shark rewilding has begun in Raja Ampat, where fewer than 20 of these gentle, spotted predators remain across 6 million hectares of reef. A coalition of aquariums from Sydney to Atlanta is shipping fertilized eggs across the Pacific to a hatchery on the island of Kri, where Indonesian “shark nannies” raise the pups until they’re ready for the open sea. Four young sharks have already been released, and conservationists hope to send 500 more swimming into protected waters within a decade. In one of the few corners of the ocean where marine life is genuinely recovering, this quiet experiment could become a blueprint for bringing other vanishing species back from the edge.

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.

Desert landscape at sunset, for article on Mexico protected areas

Mexico announces 20 new protected areas covering more than 5 million acres of land

By / / Good News For Humankind

Mexico’s protected areas just expanded by 2.3 million hectares — roughly 5.7 million acres — with 20 new designations spanning 12 states and two coastal zones. The largest, Bajos del Norte national park in the Gulf of Mexico, safeguards grouper spawning grounds, hawksbill turtles, and the livelihoods of more than 3,000 fishing families along the Yucatán coast. Inland, the new Sierra Tecuani biosphere reserve formalizes jaguar habitat that Indigenous ejido communities in Guerrero have quietly tracked and tended for over a decade. Other sites shelter whale sharks, Pacific sea turtle nesting beaches, and the burrowing Mexican prairie dog. The most hopeful thread here isn’t the decree itself — it’s the recognition that lasting conservation tends to grow from the communities already doing the work.

Landfill. A lot of plastic garbage. Environmental problems., for article on plastic waste ban, for article on plastic bag bans

Plastic bag bans in the U.S. have already prevented billions of bags from being used

By / / Good News For Humankind

Plastic bag bans are quietly working — researchers estimate they eliminate nearly 300 single-use bags per person each year in places that adopt them. A new report from three nonprofits looked at policies in New Jersey, Vermont, Philadelphia, Portland, and Santa Barbara, and found New Jersey’s statewide ban alone keeps more than 5.5 billion bags out of circulation every year. More than 500 U.S. cities and 12 states have now passed similar restrictions, with Georgia and Massachusetts possibly next. People adjust faster than skeptics expect, bringing their own bags or simply going without. It’s a small daily habit shift that, multiplied across millions of shoppers, shows how thoughtful policy can ripple outward into cleaner waterways and healthier communities.