Vostok Ice Core (1970s-1998)
Soviet and Russian scientists drilled at Vostok Station in East Antarctica, eventually reaching 3,623 meters and extracting ice up to 420,000 years old. The core demonstrated tight correlation between atmospheric CO2 and Antarctic temperature across glacial cycles.
First ice core extending beyond 100,000 years, proving ice age cycles linked to greenhouse gases.
Sparked debate about whether CO2 drives temperature or vice versa, later resolved showing both through feedbacks.
Vostok pioneered deep ice core drilling in extreme Antarctic conditions, proving the technical feasibility of projects like Beyond EPICA.
