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Documentary series. Dr Iain Stewart reveals the role natural forces have played in the creation of the planet Earth. The first episode discusses volcanoes. Although they appear to be destructive, volcanoes have been crucial to the development of life on this planet. Iain's journey takes him to Ethiopia to discover lava lakes, to Iceland to scuba dive between continents and to New Zealand to sample some hot springs.
Documentary series. Dr Iain Stewart reveals the crucial natural forces that have shaped the earth's development. A flight in a jet plane, a trip to the Andes and a trip to Shark Bay in Australia are expensive but necessary to discuss atmosphere.
Documentary series in which Dr Iain Stewart reveals the natural forces that have shaped the earth's development. Ice isn't just something to put in a gin and tonic - it has carved out landscapes, unleashed catastrophes and shaped human evolution. Now it could cause the destruction of our civilisation. Iain visits the Jacobshavn glacier in Greenland which has retreated 10km in the last few years because of global warming.
Geography series with Dr Iain Stewart. Iain travels to surfers' paradise Hawaii to learn more about oceans, explaining the difference between waves, tides and currents. In the Amazon, he rides the world's longest tidal bore. In the beginning, there were no oceans: they are thought to have gradually formed from volcano steam and melted comet ice. Change continues today: a new sea is forming in Ethiopia, which will separate East Africa from the mainland, and the Mediterranean is drying up.
Geography series with Dr Iain Stewart. Our planet is unique within the solar system. Four-and-a-half billion years ago it had a twin named Theia which was absorbed into the Earth, increasing its gravity and allowing it to form an atmosphere. Iain travels to Meteor Crater in Arizona to explore the atmosphere's role in protecting us from bombardment by meteorites. Life on earth only prospers because it is provided with right amount of heat from the sun.
