Harmful Algal Bloom (IMAGE) Carnegie Institution for Science Caption The Nature Water cover image shows cyanobacterial scum from a harmful algal bloom in Milford Lake located in Kansas, United States. Cyanobacterial toxins such as microcystin produced by these blooms threaten water resources around the globe. Regions with the highest risk for elevated microcystin concentrations are expected to shift to higher latitudes under global warming. Credit Image is courtesy of Ted D. Harris, Kansas Biological Survey and Center for Ecological Research, University of Kansas. Usage Restrictions With credit License Original 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.