Climate Change Carbon Dioxide and Human Evolution During the Cambrian Explosion

The Cambrian Explosion may represent the most important evolutionary event in the history of life on Earth. It is the first period of the Phanerozoic Eon, the last 545 million years, during which animal and plant life as we know it suddenly became manifest in fossils. This video shows how the planet earth itself evolved from its formation ~4.5 billion years ago and how Carbon Dioxide atmospheric concentration and Global average temperature have evolved.