Algae blooms that can be harmful to the health of humans and even deadly for pets are increasing in Arizona lakes due to warming temperatures and nutrient buildup. The Arizona Department of Environmental Quality has requested that people report suspicious algae sightings through the department’s app. As dryer and hotter conditions become more frequent and intense in the state’s desert region the dangerous blooms are expected to become more common and their impacts more severe, says Taylor Weiss, an assistant professor of environmental and resource management in The Polytechnic School, part of the Fulton Schools, and a researcher with the Arizona Center for Algae Technology and Innovation.