Sulphur Mine (IMAGE) University of Helsinki Caption Sulphur mine in Ijen, Java, Indonesia. Both large-scale industrial ore mining and local artisanal small-scale mineral extraction are major sources of pollution in Indigenous Peoples' lands. Credit Joan de la Malla 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.