Silica 'leaked' into Pacific during Ice Age
Atmospheric carbon dioxide levels were much lower during the last Ice Age because unusually high silica levels in the Pacific Ocean bumped up oceanic plant-life.
Source: http://www.cosmosmagazine.com/news/3820/silica-leaked-out-pacific-ocean
Sarah Polley Sarah Shahi Sarah Silverman Sarah Wynter Scarlett Chorvat