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Planets and atmospheres

A planet's climate is decided by its mass, its distance from the sun and the composition of its atmosphere. Mars is too small to keep a thick atmosphere. Its atmosphere consists mainly of carbon dioxide, but the atmosphere is very thin. The atmosphere of the Earth is a hundred times thicker.

Year: 2005

From collection: Vital Climate Graphics

Cartographer: Philippe Rekacewicz, UNEP/GRID-Arendal

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