Lake Towuti (IMAGE) Brown University Caption Lake Towuti in Indonesia sits upon as much as a million years of sediment that holds clues about past climate change in a region that influences climate worldwide. A team of international scientists has kicked off a project to gather core samples from those sediments. Credit Brown University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.