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Earth Focus
How Purple Sea Urchins are Taking Over California's Coastal Waters
Certain circumstances in the ocean can lead to "urchin barrens," where urchins dominate the ocean floor and mow down kelp forests. And without kelp, abalone are left to starve. But while urchin barrens may seem like a win for the species, the imbalance eventually leaves them malnourished. A healthy balance of diverse species is essential to thriving near-shore ecosystems.
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26:40
A look at the Peruvian government's Operation Mercury, a decisive action to shut down an entire town built around an illegal gold mine.
26:39
South Africa faces a stark reality as the continent’s largest greenhouse gas emitter.
26:39
In-depth profiles of four young environmentalists: Alexandria Villaseñor in California, Carl Smith in Alaska, Ayakha Melithafa in South Africa and Litokne Kabua in the Marshall Islands.
26:40
Entire aquatic ecosystems are beginning to collapse.
26:30
Solar power is changing lives in unexpected places.
26:40
The realities of milk production are forcing dairy communities across the globe to rethink the dairy production process.
26:04
This episode explores lumber poaching in the forests of Brazil and Oregon, where citizens and scientists are working together to combat the illegal lumber trade.
24:40
The popular demand for avocados is having a devastating impact on a drought-stricken community in Chile.
25:52
This episode of "Earth Focus" examines how the worldwide demand for oil and gas is impacting the communities that supply it.
24:28
Los Angeles is one of the biggest biodiversity hotspots in the world, despite its smog, urban sprawl and snarling freeways.
25:44
Communities and innovators all over the world are creating new sustainable food sources that are resilient to climate change and growing populations.
25:44
Anticipating future water needs, two regions on opposite sides of the world turn to technology for answers.