Daily Archives: June 18, 2019


Workshop: The Earth evolution as a thermal system

Sudbury Geological Discussion Group Workshop Date: June 17, 2019 About the Workshop: Cooling and warming has occurred many times during the Earth’s history. At times, the Earth has entirely frozen to form a ‘snowball’, while at others, it has become extremely hot, resulting in the mass extinction of species. However, despite 50 years of established […]