Over the next several decades as the global population grows, society will be faced with pressing challenges such as providing reliable supplies of food and water, diminishing climate change and adapting to its impacts, and building healthy, resilient cities. These challenges call for new and expanded roles for environmental engineers, says a new report by the National Academies of Sciences, Engineering, and Medicine. To address the challenges, the report recommends that the environmental engineering field evolve its education, research, and practice to advance practical, impactful solutions for society’s multifaceted, vexing problems.