One of the most powerful supervolcanoes on Earth is found in the American northwest — Yellowstone. It has the largest magma reservoir on Earth, and its geothermal and seismic activity has been constantly evolving for the last 10 years. What if that activity were the first indication of the volcano’s great reawakening? And if Yellowstone erupts, what would be the consequences for humanity? This 52-minute documentary will take you through different possible scenarios of a Yellowstone super eruption using impressive 3D models and the help of leading experts in the field.

For five days in December 1952, a thick smog suffocated the British capital causing the death of thousands of Londoners. The health catastrophe lead to a realisation, in Britain and around the world, that air pollution was a serious threat to human health. This documentary reveals what happened, hour by hour, in one of the worst peacetime disasters of the 20th century.