b"The Science of Green Slime:Climate Change is Harming Water Quality30The team's study of algal blooms in over 70 lakes across the globe found that water quality in most lakes has deteriorated over the last 30 years. One example is Lake Okeechobee in Florida, where states of emergency were declared in 2016 and 2018 due to toxic algae.Image Courtesy NASA Earth Observatory image made by Joshua Stevens, using Landsat data from the U.S. Geological SurveyE veryone needs clean water. ScientistsRecently, Michalaks lab showed that precipitation understand much of the climate impacts onand temperature play a much stronger role in water water quantityfrom droughts to flooding quality than was previously understood. Using but little about how climate impacts water quality.historical U.S. data, they derived robust, quantitative Anna Michalaks lab is elevating the understanding ofrelationships between meteorology and nitrogen the relationship between climate and water qualityrunoff, harmful algal blooms, and dead zones. They for lakes, rivers, and coastal zones worldwide. Herthen examined how future climate change, as well as focus has been on nutrient runoff and the harmfulsocietal mitigation efforts, will impact water quality.algal blooms with resulting low-oxygen dead zones.In 2017, the lab showed that anticipated rainfall Intense or heavy rainfall washes nutrients from landchanges over the U.S. will lead to a 20% increase into rivers and lakes. With rising temperatures, thisin nitrogen runoff in the coming decades. It would runoff promotes harmful algae growth and reducestake a one-third decrease in nitrogen fertilizer use water mixing in lakes and along coasts, allowing algae toto offset the climate impact or make water cleaner proliferate, releasing toxins, depleting oxygen, creatingthan it is today. Looking globally, the team found dead zones, and disrupting municipal water supplies. that parts of Asia, including India and China, are particularly susceptible to similar impacts. In 2019,"