Ice ages
An ice age is a long period of reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. Earth's climate alternates between ice ages and greenhouse periods, during which there are no glaciers on the planet.
2 episodes
Episodes in this category also belong to the following categories:
Doggerland
Melvyn Bragg and guests discuss the growing understanding of the humans, plants and animals once living on land now under the North Sea, submerged in the Stone Age.
27 June 2019
Featuring: Vincent Gaffney, Carol Cotterill, Rachel Bynoe
Ice ages
Melvyn Bragg and guests discuss ice ages, periods when the temperature of the Earth has dropped to low levels.
14 February 2013
Featuring: Jane Francis, Richard Corfield, Carrie Lear