A team of planetary scientists, ecologists, and marine biologists affiliated with several institutions in the U.S. and one in the U.K., has found evidence suggesting that parts of the world's oceans ...

Since the Industrial Revolution, scientists estimate that the ocean has become around 30% more acidic from the uptake of additional anthropogenic carbon dioxide. Ocean acidification has widespread ...

“The signs of the ocean in distress are all around us”, said Peter Thomson, Special Envoy of the Secretary-General of the United Nations for the Ocean, at the conference in Nice, France last week.

A new assessment finds that the world’s oceans crossed the safe threshold for acidification in 2020, breaching a key planetary boundary and posing serious threats to marine life. Ocean acidification ...

Dear EarthTalk: What are some natural ways to fight ocean acidification? – J.K., Boston Ocean acidification, the lowered pH levels of ocean water, has become a big threat to the environment in recent ...

An unhealthy sea butterfly, or pteropod, showing effects of ocean acidification including ragged, dissolving shell ridges on upper surface, a cloudy shell in lower right quadrant, and severe abrasions ...

Scientists have known for decades that soaring atmospheric carbon dioxide emissions are causing changes in ocean chemistry, threatening marine life and ecosystems. In June 2025, a study found that ...

PORTLAND, Maine (AP) — Sharks are the most feared predators in the sea, and their survival hinges on fearsome teeth that regrow throughout their lives. But changes in the ocean's chemistry could put ...

How will the climate crisis affect one of the ocean’s fiercest predators? New research published Wednesday has examined what might happen to sharks’ highly specialized, flesh-cutting teeth. As carbon ...

The oceans have absorbed a significant portion of all anthropogenic (CO 2) emissions (approximately a third of the CO 2 emitted from fossil fuel emissions, cement production and deforestation; Sabine ...

Ocean acidification is the ongoing decrease in ocean pH caused primarily by uptake of anthropogenic CO₂ from the atmosphere, leading to shifts in the seawater carbonate system. Dissolved CO₂ forms ...