Part 2 • 2016 • episode "S1E2" • Climate Change by the Numbers

6:19

Learn the basic science of climate change in 24 easy steps.

It's Okay To Be Smart • Environment

51:45

The cloud forests in the Andes of Ecuador are among the most species-diverse landscapes on Earth. These beautiful forests are under threat. They have to give way to fields and cow pastures. But there are conservationists who want to stop the clearing of the cloud forests.

S1E2 • Paradise Preserved • 2019 • 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

58:18

Dr Helen Czerski delves into the Horizon archive to chart the transformation of a little-known theory into one of the greatest scientific undertakings in history.

Horizon • Environment

59:12

Volcanoes have a fearsome reputation. In reality, they are the most important force in the creation of the planet as we know it today. Iain abseils into a lava lake and cave dives in a cenote to show how the heat that fuels volcanoes also drives some of the most fundamental processes on the planet.

S1E1 • Earth: The Power of the Planet • Environment

48:03

Japan has more than 100 active volcanoes--two in particular may be on the verge of unleashing a devastating sequence of deadly eruptions and secondary earthquake activity. Join intrepid volcanologist Tom Pfeiffer's dangerous and exhilarating journey to the foot of these angry giants.

S2E4 • Volcanic Odysseys • 2016 • Environment