At the Edge of Space

132:41

This is a story about the greatest risks to humanity, and what we can do about it. We are living in a time when human-made risks pose the biggest threat to our existence. Technological progress has brought us to a precipice. For the first time ever, we have the capacity to destroy ourselves. Edge of Existence lays out how we can pull ourselves back from this precipice in order achieve a vast and extraordinary future.

2022 • Environment

52:50

Drill down to discover the treasures beneath our feet that power our world. Fossil fuels–coal, oil, and natural gas–powered the industrial revolution and allowed us to build a way of life that many cherish today. Personal cars, planes, lights, hot showers–all of these are gifts from our fossil fuels… but they have a dirty dark side in that they are polluting the planet. What is it about these natural resources that have allowed them to fuel our civilization? What secrets are locked in their molecules? Where did that energy come from, and can we find alternative energy resources that come in a cleaner form? The hunt is on for new treasures that might allow us to power our modern way of life without damaging the environment. Join NOVA as we explore the resources that both power and pollute, from modern-day oil prospecting in California, to a mega-city utility company struggling to keep the lights on during hot summer days, to China where an engineer strives to solve one of the greatest obstacles to the success of solar power. Travel the globe to see how our energy treasures are changing—and if they can keep the lights on.

Part 3 • Treasures of the Earth • 2016 • Environment

15:22

Renowned marine biologist Dr. Sylvia Earle reveals why the dual threats of ocean pollution and overfishing could have a devastating impact on mankind.

2017 • Environment

57:58

At a time when the Earth's surface is changing faster than ever in human history, watch cities grow, forest disappear and glaciers melt. In the ever-growing grey of cities one man is feeding thousands of parakeets; in Sumatra a female orangutan and her daughter face life in a forest under threat; while in Tanzania local people use satellites to replant a forest, securing the future for a family of chimpanzees. This is our home as we've never seen it before.

S1E4 • Earth from Space • 2019 • Environment

52:10

Something exceptional is happening in the north of the Republic of the Congo: here loggers are not destroying the environment but are helping through their work to preserve the tropical foresters.

S1E1 • Paradise Preserved • 2019 • Environment

57:58

Earth's surface is covered in weird and wonderful patterns. The Australian outback is covered in pale spots, the work of wombats; a clearing in the endless green canopy of the Congo rainforest has been created by an incredible elephant gathering; and the twists and turns of the Amazon make a home for rehabilitated manatees. This is our home, as we've never seen it before.

S1E2 • Earth from Space • 2019 • Environment