Tag Archives: ocean acidification

Ocean acidification and sea urchins

Like many other invertebrates, sea urchins may be vulnerable to increasing acid levels in the ocean. The hard parts of urchins (such as the sea urchin in our photo) are made up of calcite, magnesium-rich calcium carbonate. Ocean acidification could more »

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Ocean acidification 101

Ocean acidification is a big topic in the news these days, but what exactly is it? Put simply, it’s an alteration of the ocean’s natural acid-base balance. The ocean absorbs carbon dioxide (CO2) from the atmosphere. When we burn fossil more »

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Seattle Aquarium hosts ocean acidification event

Washington’s shellfish population—clams, oysters and mussels—have been called the “canaries in the coalmine” for ocean acidification. Rising acidity in our local waters has already made it difficult for some shellfish populations to reproduce. Without urgent and immediate action, the problem more »

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