H₂O is what connects us—it's the alpha liquid that supports natural wonderlands and lets us live, play, and explore. You'd think we'd be taking better care of this critical resource, and yet waste and pollution are rampant and more than 1.1 billion people lack access to clean water. The good news? Our special report introduces you to the water heroes who are reversing the worst woes and showing us how to keep the planet afloat.