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Teresa Tomassoni

Oceans Correspondent

Teresa Tomassoni is an environmental journalist covering the intersections between oceans, climate change, coastal communities and wildlife for Inside Climate News. Her previous work has appeared in The Washington Post, NPR, NBC Latino and the Smithsonian American Indian Magazine. Teresa holds a master’s degree in Journalism from the Craig Newmark Graduate School of Journalism. She is also a recipient of the Stone & Holt Weeks Social Justice Reporting Fellowship. She has taught journalism for Long Island University and the School of the New York Times. She is an avid scuba diver and spends much of her free time underwater.

  • [email protected]
More than 90 species of reef fish, including the commercially important southern red snapper, depend on the Great Amazon Reef System, where they feed and shelter in its crevices and caves. Credit: Greenpeace Brazil

As COP30 Unfolds in the Amazon, Brazil Is Drilling for Oil Near the Great Amazon Reef System

By Teresa Tomassoni

An Indigenous Guna scientist monitors a nesting leatherback sea turtle on a beach in Armila, Panama. Credit: Teresa Tomassoni/Inside Climate News

Deadly in Small Doses: New Research Shows the Lethal Effects of Ingested Plastic on Marine Animals

By Teresa Tomassoni

Expert marine mammal researchers used high-powered binoculars called “big eyes” to search for the vaquita porpoises, which are typically hard to see due to their small size and shy nature. Credit: Paula Mosa

Rare Sightings of Critically Endangered Vaquita Spark Cautious Optimism About the Species’ Ability to Recover

By Teresa Tomassoni

Andrea Crosta, executive director of Earth League International, has been investigating the illegal totoaba trade since 2018 as part of his organization’s Operation Fake Gold. Credit: Carolyn Van Houten/The Washington Post via Getty Images

Inside the Fight to Stop the Illegal Trade Driving the Vaquita Porpoise Toward Extinction

By Teresa Tomassoni

A green sea turtle grazes on seagrass in Turks and Caicos. Credit:Teresa Tomassoni/Inside Climate News

After Decades of Protections, Green Sea Turtles Have Been Saved From the Brink of Extinction—for Now

By Teresa Tomassoni

A humpback whale jumps out of the waters of the Pacific Ocean near Cabo San Lucas, Mexico. Credit: Alfredo Martinez/Getty Images

Whale and Dolphin Migrations are Being Disrupted by Climate Change

By Teresa Tomassoni

Micaela Huaman Fernandez, an Asháninka stingless beekeeper, inspects a hive of Tetragonisca angustula bees. Credit: Teresa Tomassoni/Inside Climate News

Defending Stingless Bees in the Peruvian Amazon

By Teresa Tomassoni

In Niagara Falls, Ontario, Beluga whales at Marineland in July. Credit: Tara Walton/Toronto Star via Getty Images

Shuttered Canadian Marine Park Warns It May Euthanize 30 Beluga Whales, Prompting a Global Outcry

By Teresa Tomassoni

Fish swim underwater at the North Seymour Island dive site in the Galapagos archipelago, Ecuador. Credit: Ernesto Benavides/AFP via Getty Images

A Turning Point for the Ocean: What the High Seas Treaty Means

By Teresa Tomassoni

Freshly caught tuna are offloaded from the hold of a fishing vessel in Ghana’s Port of Tema. Credit: Kyle LaFerriere/WWF-US

Human Impacts on Ocean Could Double or Triple by 2050, a New UC Santa Barbara Study Warns

By Teresa Tomassoni

At Climate Week NYC, an official said the United Kingdom would expand offshore wind as part of its national climate action plan. Here, in Belfast, Norther Ireland, wind turbine blades are assembled in Belfast Harbor. Credit: Peter Titmuss/UCG/ Universal Images Group via Getty Images

At Climate Week, Chile and the UK Commit to Ocean-Based Action Plans Ahead of COP30

By Teresa Tomassoni

More than 500 reef building coral species are found around Panaon Island, recently designated by the Phillipine government as a protected seascape. Credit: Danny Ocampo/Oceana Philippines

In the Philippines, a New Protected Seascape Safeguards ‘Super Reefs’

By Teresa Tomassoni

A humpback whale feeds on Antarctic krill in Fournier Bay of the Antarctic Peninsula. Credit: Chris Johnson/WWF-AUS

Charting Whale ‘Superhighways’ for Conservation

By Teresa Tomassoni

Woods Hole researchers, Adam Subhas (left) and Chris Murray, conducted a series of lab experiments earlier this year to test the impact of an alkaline substance, known as sodium hydroxide, on copepods in the Gulf of Maine. Credit: Daniel Hentz/Woods Hole Oceanographic Institution

Can We Alter the Ocean to Counter Climate Change Faster? This Experiment Aims to Find Out

By Teresa Tomassoni

Gentoo penguins on Cuverville Island in the western Antarctic. Like seals and whales, they eat krill, an inch-long shrimp-like crustacean that forms the basis of the Southern Ocean food chain. But penguin-watchers say the krill are getting scarcer in the western Antarctic peninsula, under threat from climate change and fishing. Credit: Eitan Abramovich/AFP via Getty Images

Record Krill Catch Prompts Early End to Fishing Season in Antarctica and Growing Calls to Protect its Fragile Ecosystems

By Teresa Tomassoni

The deep-sea mining vessel “Hidden Gem,” owned by AllSeas and commissioned by The Metals Co., is seen anchored at sea in Labuan, Malaysia. Credit: Jurnasyanto Sukarno/Greenpeace

Nations Denounce Deep Sea Mining Company’s Bid to Exploit Metals in the Pacific Under US Law

By Teresa Tomassoni

Global leaders are gathered in Kingston, Jamaica, for several weeks this month to debate a set of regulations that would govern future deep sea mining activities. Credit: Andrés Felipe Carvajal Gómez for IISD/ENB

Deep Sea Mining Negotiations Resume Amid Industry Pushback and Environmental Alarm

By Teresa Tomassoni

A green sea turtle rests in the Galapagos. Credit: Carlos Espinosa/Charles Darwin Foundation

At UN Ocean Conference, Nations and Funders Seek to Create and Expand Large-Scale Marine Protected Areas

By Teresa Tomassoni

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