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As spring lights up the land, Alaska faces one of the greatest transformations on earth. Temperatures soar, and as the sun's rays hit the snow and ice, water, light and warmth return. Alaska's transition to spring may look magical, but for those animals emerging from a long winter's sleep, it's a time of intense competition, as everything is in a rush to cash in on Alaska's riches.
The enduring luster of gold, the conductivity of copper, the strength of steel—the special properties of metals have reshaped societies and defined eras; they have such an important role in human history that entire ages have been named after them. But what gives metals their astounding characteristics? From the perfect ring of a bronze bell to the awe-striking steel construction of Beijing’s “Bird’s Nest” stadium, how have humans perfected metalworking? And how have metals enabled our modern hi-tech world? Explore the science of metals with chemists and engineers as they literally test the mettle of metals and investigate how these remarkable materials have ushered humanity from the Stone Age to the stars.
Part 2 • Treasures of the Earth • 2016 • Environment
It's amazing to think that in the 1900s a mere tenth of the world's population lived and worked in cities. Now it is over half. With soaring populations, how will we keep our cities live-able? And what will the city of tomorrow look like?
4/10 • Catalyst: Season 1 • 2015 • Environment
Iain looks at the big picture of Earth's place in space. It's taken four and a half billions years and several great catastrophes to turn it from a barren rock to the unique planet we know today.
World War 3 breaks out & a nuclear nightmare becomes reality as thousands of hydrogen bombs destroy the world's greatest cities. Resulting in a Nuclear Winter, plunging the planet into a sudden Ice Age.
S1E4 • Doomsday: 10 Ways the World Will End • 2016 • Environment
What if the Earth was pulled out of its orbit and sent on a collision course into the Sun? Earth's deadly fall triggers massive hurricanes, sandstorms and a heat wave that kills every last person.
S1E8 • Doomsday: 10 Ways the World Will End • 2016 • Environment