LISA GERRY has authored numerous books for National Geographic Kids, including
100 Ways to Make the World Better. She has also worked as a writer for
Time,
Forbes,
Business Insider, and
The Oprah Magazine.
DR. SANDRA POSTEL (expert contributor) directs the Global Water Policy Project and is a National Geographic Explorer. She is a frequent lecturer, author, and consultant on global water issues, and in 2021, she won the prestigious Stockholm Water Prize, often described as the Nobel Prize for water. She is the author of
Replenish: The Virtuous Cycle of Water and Prosperity;Pillar of Sand: Can the Irrigation Miracle Last?; and
Last Oasis: Facing Water Scarcity, which appears in eight languages and was the basis for a PBS documentary.