Endangered Species

Endangered Species

Endangered Species

Protecting endangered species and their habitat is part of the foundational work that the Sierra Club was built around – and it’s working. Today there are more gray wolves, grizzly bears, and California condors than there were a generation ago thanks to Sierra Club members and supporters.



What is the Endangered Species Act?

The Endangered Species Act is one of the most important and effective conservation laws in history. The bipartisan bill passed Congress with almost unanimous support on December 28, 1973, preventing the extinction of roughly 291 species since its passage. Today, more than 80% of the public supports it.

The Endangered Species Act has helped save 99% of species listed for protection from extinction, including the humpback whale, grizzly bear, and bald eagle. Because of its success, gray whales still swim our coasts, peregrine falcons still soar our skies, and polar bears still roam the Arctic tundra. The Act is currently helping protect more than 2,000 species of plants and animals that are threatened or endangered.

The Endangered Species Act is considered one of the greatest success stories of the environmental movement and serves as a model for conservation efforts around the world.

What We Are Doing

Sierra Club is working hard to fight back against attacks to the Endangered Species Act from the Trump Administration and Republicans in Congress. Our chapters and volunteers are also pressuring local decisionmakers to save endangered species, restore keystone species to historic habitats, and protect and connect important habitats so that imperiled wildlife can thrive in the face of climate change and other human-caused threats.

We are leveraging our grassroots power to protect regional species like Florida panthers and grizzly bears in the Northern Rockies. We are also working with Indigenous partners to ensure that Native communities have the resources available to them to manage wildlife on their lands and to restore culturally important species like bison and salmon. In recent years, we have also worked to educate policymakers and the public on how the extinction and climate crises, and the solutions to these crises, are interconnected.

What You Can Do

Victory!

We recently saw a big win for gray wolves in the Northern Rockies. Thanks to legal action by the Sierra Club and partners, Northern Rockies wolves are one step closer to Endangered Species Act protections after a federal judge found the Trump administration's denial unlawful.

March 26, 2026

‘God Squad’ federal panel to meet next week to address exemption request

March 17, 2026

WASHINGTON, D.C.

March 2, 2026

GREAT FALLS, MONTANA — The Sierra Club has joined multiple conservation groups in suing the Bureau of Land Management to challenge its final plans governing greater sage grouse management across 71 million acres of federal public lands in nine…

January 22, 2026

Proposal from Rep. Gosar, HR 4255, would push critically endangered animal closer to extinction

December 22, 2025

Proposed rules would undermine nation's most successful conservation law