Union of Concerned Scientists Earth & Space Science, ESS2.C: The Roles of Water in Earth’s Surface Processes, ESS2.D: Weather and Climate, ESS3: Earth and Human Activity, ESS3.A: Natural Resources, ESS3.D: Global Climate Change, Life Science, LS2: Ecosystems: Interactions, Energy, and Dynamics, Physical Science, PS3: Energy Find resources on environmental and climate issues, FAQs, articles, as well as ways to take action. Union of Concerned Scientists Tags: Website