Lost Kelp Forests (IMAGE) University of Adelaide Caption Kelp forests (left image) are increasingly being replaced by extensive covers of weeds (right image) where local pollution occurs. Global pollution, in the form of carbon emissions, is likely to accelerate this switch. Credit Sean Connell Usage Restrictions For use with this story only 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.