Global Change Explorer

U.S. Environmental Protection Agency


This collection of web tools provides access to data to help assess the vulnerability of air, water, ecosystems, and human health to climate change, land use change, and other large-scale environmental stressors. The data and tools are relevant across multiple scientific disciplines and environmental media, providing a foundation for integrated assessments of global change.


  • View scenarios of future human population, land use, and impervious surfaces
  • Visualize and download changes in streamflow, nutrient, and sediment loads under different climate change scenarios
  • Compare historical and future nitrogen and sulfur deposition maps to terrestrial and aquatic ecosystems

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