Global climate change will have significant regional impacts. Many of these impacts on hydrology and water resources, most notably groundwater, are not well understood. Additionally, land-atmosphere interactions have long been shown to significantly influence regional climate. Presentations will include: • A range of topics related to climate change, groundwater, and water resources, focusing on climate-hydrologic feedbacks and coupled modeling and observational studies that integrate across traditional boundaries in hydrology. • The impact of climate change on surface water resources, groundwater resources, and surface water–groundwater interactions • The role of lateral surface and subsurface flow and vertical surface-subsurface exchange in land surface energy and water balances • Interactions between water resources management on the land surface hydrology, surface energy and water balances, and land-atmosphere feedbacks • Local and non-local impacts of land-atmosphere coupling, including feedbacks between local hydrology and large-scale circulation