b"precipitation and temperature play amuch stronger role in water quality than was previously understood.31Left to right: Eva Sinha, Jeff Ho, Dario del Giudice, and Tristan Ballard have been involved in the water quality work in Anna Michalak's (far right) lab described in this highlight.Images courtesy Carnegie Institution for Sciencethe team showed that climate mitigation effortsmuch more so than do changes in land use and focusing on biofuels could surprisingly exacerbateland management. In another study using billions of nutrient pollution. However, they also found therehistorical data points from the Landsat satellite, they are solutions to protect both water and the climate. also showed that over two-thirds of lakes globally have experienced an increase in intense algal blooms The team recently looked to past decades,since the 1980s. Only lakes that warmed the least questioning whether climate change has alreadyshowed some improvement, which means that water impaired water quality. They examined nutrientsis already less clean from climate change. The team entering U.S. waterways and found that trendsis now examining other facets of this problem, such since the 1980s correlate with changes in totalas how much more likely extreme algal blooms have precipitation, extreme precipitation, and temperaturebecome as a result of climate change. kg N ha-1 year-1 Decreasing (P 0.1) Increasing (P 0.1)0 1 10 20 40 60 80 245 Decreasing (P 0.1) Increasing (P 0.1)This image shows current fertilizer application rates for regionsThis image shows how the intensity of algal blooms has changed around the globe that receive heavy precipitation and that arefor dozens of lakes globally since the mid-1980s. The intensity of highly likely to see further increases in precipitation as a result ofblooms has increased for over two-thirds of the examined lakes climate change. Regions depicted in orange and red are at highest(red symbols), and the increase is statistically significant (red risk of water quality impacts resulting from climate change, sincetriangles) for one-third of examined lakes. climate change will interact with local land management to increaseImage reprinted with permission Ho, J.C., Michalak, A.M. & Pahlevan, N. Widespread global increase in intense nutrient runoff.lake phytoplankton blooms since the 1980s, Nature 574, 667-670 (2019) doi:10.1038/s41586-019-1648-7Image reprinted with permission from AAAS, E. Sinha, A. M. Michalak, V. Balaji, Eutrophication will increaseduring the 21st century as a result of precipitation changes, Science 357, 405-408 (2017)"