Nearly two decades and $4 billion into a sweeping restoration program, new data about the pace of climate change has raised questions about how much of Everglades National Park can ever be regained.

Off the U.S. coast, a decades-old marine sanctuary has emerged as a global inspiration for safeguarding our oceans.

The tiny St. Francis Satyr butterfly is found in only one place on Earth: on a military base in North Carolina. It’s among more than 1,600 U.S. species that have been protected by the Endangered Species Act.

China wages an enormously ambitious plan to protect and restore natural habitats in one of the most densely populated places on Earth, building on the example of pioneers of the U.S. national parks system.

Ghost ponds. Prairie potholes. Around the world, efforts are being made to reclaim wetlands that have been filled in and plowed over.

The Vjosa is one of Europe’s last wild rivers, but it faces threat from dam construction. As pressure to build dams intensifies in less developed countries, the opposite is happening in the U.S. and western Europe.

Kill an owl to save another owl? Sometimes uncomfortable choices are made to save a species from extinction. "Owl vs. Owl" was chosen as an official selection of the 2019 International Wildlife Film Festival.

A grand experiment is underway in Tanzania, where people are trying to find a way to coexist with lions. Watch episode 4 of AP's environment series What Can Be Saved?

Around the world, efforts are under way to rebuild forests -- a remedy for climate change. Watch episode three of AP's environment series "What Can Be Saved?" now and tune in next Tuesday for a new episode.

Scientists in Venezuela persevere in their quest to study fragile alpine ecosystems as the country's only glacier quickly disappears and their country is in chaos.