Snowball Earth

Green Impact Billion-year geological model explains the Great Unconformity seen in the Grand Canyon

Earth’s slow continental rise and fall may explain how the Great Unconformity formed and survived, linking missing rock records to currents deep in the mantle.

Joshua Shavit

Discoveries Animals may have evolved 200 million years earlier than previously thought Joshua Shavit

Green Impact Sea salt may have made Snowball Earth far colder than previously thought Joshua Shavit

Green Impact ‘Snowball Earth’ repeatedly thawed during a 56-million-year ice age Rebecca Shavit