Baltimore, Inner Harbor (IMAGE) Cary Institute of Ecosystem Studies Caption Many human-caused environmental problems have their origins in the release of waste products. These waste products may not be toxic on their own, but interact with other biogeochemical cycles and cause serious global and regional problems. Credit Beth Tenser Usage Restrictions Must be used in conjunction with the press release. 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.