Water

 The water cycle is essential to life on Earth. Not only does it allow for growth and survival of living things, the water cycle also acts as an integrator, redistributing nutrients and matter and driving weathering. The desire to understand the water cycle creates critical questions in science about how water impacts human activities and vice versa. To explore what global change might mean for water supply, water quality, and aquatic systems, take a look below at some key categories and questions.