Loved by audiences across Canada for making complex scientific issues understandable, meaningful, and fun, Bob McDonald is in high demand. A fixture in broadcasting for more than 30 years, he is currently the host of CBC Radio’s Quirks & Quarks–the award-winning science program that is heard by 500,000 people each week–and is the author of numerous bestselling books. In celebration of UN World Water Day today, Bob writes on what you can do to acknowledge it and help spread the message of water’s importance to our planet’s–and our own–well-being. Read his message here.