Sierra Taxonomy | Sierra Club

Healthy Ecosystems Need Their Keystone Species

Here's why

By Amy Brecount White June 12, 2026

In this story: ecosystems, marine ecosystems, animals, Kids' Corner

Two ochre sea stars (purple and eggplant colored) climb on white sea anemones in shallow water, with a ray of sun shining into the water

When Indigenous Knowledge and Climate Science Meet, Good Things Happen

Tribal leaders and climate coordinators are working together to protect lands and waterways

By Katie O'Reilly March 17, 2026

In this story: indigenous communities, ecosystems, climate change, climate adaptation

Profiles of three bison grazing next to a road with snowy mountains in the background.

Fix Our Forests in Name Only

A new piece of bipartisan legislation would erode safeguards meant to protect trees

By Will Solomon December 7, 2025

In this story: forests, national forests, saving wild places, ecosystems, Policy

Allegheny Mountains, Pennsylvania in autumn, with ponds in the center of the image.

Marching Mangroves Threaten This Delicate Florida Ecosystem

South Florida residents worry about the inland and northward advancement of the trees

By Jennifer Reed December 3, 2025

In this story: ecosystems, marine ecosystems, climate change, climate adaptation

Key Deer, the smallest subspecies of the white-tailed deer that have thrived in the piney and marshy wetlands of the Florida Keys, walk along mangroves, Tuesday, Oct. 15, 2024, in Big Pine Key, Fla. (AP Photo/Lynne Sladky)

Artificial Islands Are Turning Industrial Wastelands Into Thriving Ecosystems

Groups across North America are turning to the power of Mother Nature to revive waterways

By Jennifer Cole November 20, 2025

In this story: wetlands, habitat restoration, ecosystems, urban planning

Summer 2024. Completed installation, open to the public during Chicago Architecture Center's Open House. | Photo courtesy of Nick Wesley @ Urban Rivers

Mycorrhizal Fungi Can Restore Ecosystems. Here’s How.

This library of spores specializes in growing and distributing the essential organisms

By Shi En Kim October 14, 2025

In this story: ecosystems, science, Wonder

Terra Lubin works on a potting bench inside a greenhouse, with pots of grass in the foreground.

Will Washington’s Groundbreaking Climate Law Inspire Other States?

The Evergreen State is creating a road map for phasing out fossil fuels while boosting renewable energy

By Nick Engelfried October 2, 2025

In this story: forests, state forests, saving wild places, habitat restoration, ecosystems

Three windmills stand to attention in a lush, rolling green field, with hills and mountains in the background

Beavers Build Back Better

Ecologists are relocating "nuisance" beavers to fix degraded landscapes across the West

By Lauren Colella August 29, 2025

In this story: ecosystems, wetlands, wildfire, conservation, Gee Whiz

Maryland's Blue Crabs in the Red

A key source of culture and sustenance in the mid-Atlantic faces threats on multiple fronts

By Marin Scotten August 25, 2025

In this story: marine ecosystems, ecosystems, conservation

A blue crab scuttles in shallow water on the shore.

Caught Between Climate Extremes

How post-fire flooding has destabilized a rural New Mexico community’s drinking water

By Kylie Mohr July 29, 2025

In this story: wildfire, clean water, ecosystems, climate change

This April 12, 2023 image shows burned trees in the mountains near Las Vegas, New Mexico, a year after prescribed burn operations by the U.S. Forest Service sparked the Calf Canyon/Hermits Peak Fire.

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