Issues

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Bleached coral underwater in acidic ocean water

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Global Oceans

Ocean Acidification

The ocean is absorbing our carbon — and paying the price.

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Illustration of a passenger pigeon, now extinct

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Global

Species Extinction

We are living through the sixth mass extinction. This one is us.

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Global Groundwater Systems

Aquifer Depletion

We are drinking water that fell as rain ten thousand years ago.

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Global — Every Ocean, Every Body

Microplastics

Plastic is now inside us. All of us.

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A North Atlantic right whale surfacing in the ocean

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Global Oceans

Ocean Noise Pollution

The ocean is getting louder. The whales are going deaf.

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Argentine ant colony displacing native insects on California soil

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Global

Invasive Species & Trophic Cascades

One species out of place can unravel an entire food web.

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Aerial view of forest fragmentation and habitat loss

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Global

Habitat Loss & Fragmentation

The leading cause of species extinction — and the one most within our power to stop.

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Wolf standing in a river in Yellowstone, illustrating trophic cascade ecology

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Global

Loss of Apex Predators

When predators disappear, ecosystems unravel from the top down.

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Bald eagle in flight — one of the ESA's most celebrated recovery stories

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United States

The Endangered Species Act

The most powerful wildlife protection law ever written — and the most contested.

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Wildlife crossing underpass beneath a highway, enabling safe animal movement

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Global

Human-Wildlife Conflict

As habitat shrinks, people and wildlife are forced into closer contact — with consequences for both.

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Intention Founder

Is your One Simple Thing not listed here?

Suggest a real amphibian, bird, ecosystem, insect, issue, mammal, plant, reptile, sealife, or watershed for the catalogue. If it passes review, you become its Intention Founder — the first person in the community to champion it.

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