A collection of our best articles and essays about some the world’s most at-risk groups of species — and what we can learn from them.

More frequent, longer-lasting blooms can harm both wildlife and human health — and even kill. Can we learn to predict and prevent them?

Fish in the northern reaches of the planet are adapted to thrive in some of the most dynamic conditions, but new research finds that some species are showing decline.

Miami is on the front lines of the U.S. climate crisis. Journalist Mario Alejandro Ariza’s new book takes a critical look at the larger lessons for all of our hometowns.

Here’s why the action is so harmful, how it’s possibly illegal, and why it won’t help struggling fishing communities.

A new study took a deep dive into critical aspects of ocean life to identify the areas of the high seas most worthy of conservation effort.

A historic international treaty to protect marine biodiversity is currently being negotiated, but will it be strong enough to create reserves and boost conservation efforts?

A summer of extremes leaves sobering questions about the state of Earth’s largest store of ice, capable of inundating coastlines worldwide as it melts.

We know a lot more now about the ecology of the Gulf of Mexico and the risks of deep-water drilling, but that doesn’t mean we’re any safer.

Phytoplankton produce half of the oxygen in our atmosphere, but understanding how they respond to climate change is complicated and critically important.