A Pre-Human Industrial Civilization May Leave Traces in the Geologic Record

In 2018, climatologist Gavin Schmidt and astrophysicist Adam Frank published a study called the Silurian Hypothesis. The name is derived from science fiction and does not imply that Silurian-era organisms built factories.

In 2018, climatologist Gavin Schmidt and astrophysicist Adam Frank published a study called the Silurian Hypothesis. The name is derived from science fiction and does not imply that Silurian-era organisms built factories.

In 2018, climatologist Gavin Schmidt and astrophysicist Adam Frank published a study called the Silurian Hypothesis. The name is derived from science fiction and does not imply that Silurian-era organisms built factories.

In 2018, climatologist Gavin Schmidt and astrophysicist Adam Frank published a study called the Silurian Hypothesis. The name is derived from science fiction and does not imply that Silurian-era organisms built factories.