Engineering challenges abound in the twenty-first century. Engineers, scientists, and others are searching for--and often finding--ways to improve life for people around the world. Some are working on providing global access to clean water while others are developing fusion energy or reverse-engineering the brain. These and other topics are examined in the Real-World STEMseries. All books in the series discuss what exists now, some of the biggest challenges, and some of the most fascinating solutions. Real-world examples and fully documented quotes add insight and interest.