Friend,

There's one reason we still have bald eagles in our skies, grizzly bears in our mountains, and humpback whales in our oceans today. It's the Endangered Species Act (ESA) — one of the most important pieces of conservation legislation in our history.

But despite the ESA's overwhelming success at saving species from extinction, we are still in the midst of the first mass extinction directly caused by human activities. Habitat destruction, climate change, and other human-caused threats mean we could lose some of our most cherished wildlife forever.

We need your help NOW to fight back against the corporate polluters and destructive industries fueling climate change and pushing imperiled species to the brink.

Make a gift to the Sierra Club to celebrate the 50th anniversary of the Endangered Species Act and power our work to protect wildlife. Right now, your donation will be matched 5X — giving every $1 the power of $5.

Today only, we'll send you a FREE wildlife coloring book with your gift to protect endangered species from harm!

Wildlife populations around the world are crashing at alarming rates and with distressing frequency, largely due to habitat destruction, climate change, and overexploitation. The numbers are staggering: 3 billion birds have vanished in North America since 1970, animal populations have dropped 60% globally since 1970, and 1 million species could face extinction by 2050.

The Endangered Species Act proves that when we commit to conservation — when we invest in protecting the animals, plants, and places we care about — we can do so much good. In the half-century since it was passed, 99% of species listed under the Act have been saved from extinction.

But it's not enough, Friend. We need to take bold, decisive action now to ensure that the ecosystems that vulnerable species depend on can continue to sustain life for generations to come. That means fighting back against the fossil fuel industry's attempts to expand, closing down more pollution-spewing coal plants around the country, pushing for a clean energy future, and much more.

Your gift today will do five times as much to strengthen the Sierra Club's vital work for endangered species and the environment — don't miss out on this chance to make 5X the impact!