Os Carvoeiros

An examination of the extinction threat faced by frogs, which have hopped on Earth for some 250 million years and are a crucial cog in the ecosystem. Scientists believe they've pinpointed a cause for the loss of many of the amphibians: the chytrid fungus, which flourishes in high altitudes. Unfortunately, they don't know how to combat it. Included: an isolated forest in Panama that has yet to be touched by the fungus, thus enabling frogs to live and thrive as they have for eons.

The Rapanui community on Easter Island fights to prevent an environmental collapse due to overwhelming tourism and industrial progress, and and to preserve their cultural traditions.

The chronic shortage of housing in Central Havana has pushed the city upwards, where life spills out onto the rooftops. Resilient and remarkable, these rooftop dwellers have a privileged point of view on a society in the process of major transformation.

Tar Creek is an environmentally devastated area in northeastern Oklahoma with acidic creeks, stratospheric lead poisoning and enormous sinkholes. Nearly 30 years after being designated as a Superfund cleanup program, residents are still struggling.

Follow the veterans and newest class of Navy and Marine Corps flight squadron as they go through intense training and into a season of heart-stopping aerial artistry.

Filmmakers Alan and Susan Raymond spent three months in 1976 riding along with patrol officers in the 44th Precinct of the South Bronx, which had the highest crime rate in New York City at that time.

What if you got the chance to build a new society from scratch, what would it look like? Located more than 200 km above the polar circle, the Swedish mining town Kiruna is built on the world's largest and most modern iron ore mining tunnel, which created a significant income for the Swedish government. However, due to the mining the city has started to collapse and in order to save the industry, the city council together with the mining company LKAB have decided to move the town and its citizens 3 kilometres to the east. In doing so, the town has turned a potential disaster into a great opportunity. The new Kiruna will be an even more progressive, even better society for the future. But is it even possible to plan an ideal world?

Genuine connections between children and nature can revolutionize our future. But is this discovery still possible in the world's major urban centers? The new chapter of "The Beginning of Life" reveals the transformative power of this concept.

This intimate, in-depth look at Beyoncé's celebrated 2018 Coachella performance reveals the emotional road from creative concept to cultural movement.

American tourists at SpiritQuest Sanctuary, a medicine lodge in Peru, share their thoughts about the traditional medicine ayahuasca, and their motivations for drinking it. Don Howard Lawler, founder of SpiritQuest, describes ayahuasca and its beneficial effects, as do the filmmakers themselves.

Benito Arévalo is an onaya: a traditional healer in a Shipibo-Konibo community in Peruvian Amazonia. He explains something of the onaya tradition, and how he came to drink the plant medicine ayahuasca under his father's tutelage. Arévalo leads an ayahuasca ceremony for Westerners, and shares with us something of his understanding of the plants and the onaya tradition.