Whether it’s a liquid, solid, or gas, water is vital to our planet. We depend on it for drinking and for sustaining our crops and animals, and countless species rely on freshwater ecosystems to live. The oceans help modulate CO2 levels and maintain global temperatures while transporting nutrients and supporting marine ecosystems. As the climate changes, so will the freshwater and saltwater resources that form the foundations of our communities and economies. And as the climate changes, so will—so must—our relationship to water.