Man's relationship with the natural world.
Chile's Atacama Desert is the driest, oldest and deadest desert on earth. Yet it's plays host to living creatures and penguins even thrive nearby. It may provide clues to where to look for life on other, seemingly barren, planets.
How the Earth Was Made •
From artificial photosynthesis to vegan diets, changes in science and behavior are helping improve Earth's air quality.
Age of Humans •
Learn the basic science of climate change in 24 easy steps.
It's Okay To Be Smart •
Volcanoes have incredible effects on the weather; eruptions create localized weather phenomena like acid rain and violent volcanic lightning.
Secrets of the Earth •
A look at how the eternal quest for water brings huge challenges and ingenious solutions.
Human Planet •
Explorer Victor Vescovo and his team head to the Indian Ocean.
Expedition: Deep Ocean •