Tortoise In Peril

Solar power is changing lives in unexpected places. This episode visits with unique solar power training programs in Zanzibar and Los Angeles.

San Francisco's developers are building expensive real estate on floodplains, as officials try to heed expert future sea level projections. On the other side of the world, a deadly mudslide caused by torrential rains and deforestation in Sierra Leone shows the consequences of city planning that doesn't take climate change into account.

“Vanishing Coral” presents the personal story of scientists and naturalists who are working with local communities to protect coral reefs that are being destroyed by warming seas, pollution, and destructive fishing practices.

Led by Buddhist monks, Cambodia's indigenous Chong people protest the construction of a hydroelectric dam. The dam, to be built by the Chinese company Sinohydro, would displace the Chong and destroy their ancestral forest home. Kalyanne Mam documents their plight in her film "Fight For Areng Valley." China is beginning to draw on its religious traditions — Tibetan Buddhism, Daoism and Confucianism — to help address serious environmental challenges as profiled in Gary Marcuse and Shi Lihong's film "Searching for Sacred Mountain."

Elephants have lived in the savannas and forests of Africa for more than two million years. They are the largest land animals on Earth – and one of the most intelligent. They feel emotions like grief and joy. Can they even survive in the wild anymore?

The cost of climate change is rising and its consequences are increasingly threatening our national security.

Neonicotinoids, the most widely used insecticides in the world, have been linked to the decline of honeybees, which pollinate many food crops.

"Earth Focus" visits sites of healthy food innovation in America.

An impoverished former mining community in Colorado, endangered rhinos' new threat, and gold mining in Ecuador.

Oceans support life, yet they are overfished, polluted, and, with global climate change, are becoming increasingly acidic.