Solar Cycle 25, page-9

Extreme climate change 700 million years ago that turned Earth into a giant SNOWBALL may have been triggered by plate tectonics

• Snowball Earth was a period in which the planet experienced a deep freeze
• The Neoproterozoic era, about 700 million years ago, lasted for millions of years
• New research suggests plate tectonics were to blame for the extreme changes

EDT, 7 May 2018

http://www.dailymail.co.uk/sciencet...million-years-ago-caused-plate-tectonics.html