ESA sponsors or co-sponsors about three briefings each year, in which ESA members and other experts inform congressional staff on the science behind issues of importance to lawmakers, such as biofuels, wildfires, invasive species, and climate change. Recent briefings include:
Using Science to Improve Flood Management
Using Science to Improve Flood Management
November 2, 2011
On November 2, 2011, ESA sponsored a congressional briefing: "Using Science to Improve Flood Management." Emily Stanley (University of Wisconsin, Madison) and Jeff Opperman (The Nature Conservancy, Ohio Field Office) addressed the function of floodplains and managing rivers as systems and for multiple benefits.
Climate Change Impacts and Adaptation
Photo credit: Liz Landau, AGU
Climate Change Impacts and Adaptation
January 8, 2010
ESA co-sponsored a congressional briefing that provided a scientific perspective on options for adapting to climate change in the United States.
Featured speakers:
- Michael MacCracken, Chief Scientist for Climate Change Programs, the Climate Institute
- Kristie L. Ebi, Executive Director, Intergovernmental Panel on Climate Change (IPCC) Working Group 2 Technical Support Unit - Impacts, Adaptation, and Vulnerability
- Katherine L. Jacobs, Professor, University of Arizona Soil, Water and Environmental Science Department
- Susanne Moser, Director and Principal Researcher, Susanne Moser Research & Consulting
Water Resources in the West: Assessing Tradeoffs in a Changing Climate
Water Resources in the West: Assessing Tradeoffs in a Changing Climate
July 13, 2009
ESA co-sponsored a congressional briefing on status and future of freshwater resources in the American West, and the role of ecological science in efforts to prevent and adapt to water shortages.
Featured speakers:
- Jill Baron, Ecosystem Ecologist, US Geological Survey, Colorado State University
- Darrel Jenerette, Assistant Professor of Functional Landscape Ecology, University of California, Riverside
- Diane Pataki, Associate Professor of Earth System Science and Ecology & Evolutionary Biology, University of California, Irvine
Climate Change: Intersections of Climate and Policy
Climate Change: Intersections of Climate and Policy 
January 9, 2009
ESA co-sponsored a congressional briefing to address the scientific and public policy-related aspects of climate change.
Featured speakers:
- Timothy Wirth, former US Representative and Senator and lead US negotiator at the Kyoto Climate Conference
- Susan Solomon, a senior scientist at the National Oceanic and Atmospheric Administration, who co-chaired Working Group 1 of the Intergovernmental Panel on Climate Change
- Peter Gleick, president of the Pacific Institute for Studies in Development, Environment & Security
- Ted Parson, Professor of Law and of Natural Resources & Environment at the University of Michigan
From Agricultural to Urban Ecosystems: Nature's Services to Humankind
From Agricultural to Urban Ecosystems: Nature's Services to Humankind 
December 2, 2008
ESA co-sponsored a webinar on ecosystem services featuring presentations from both ecologists and economists:
Featured speakers:
- Jim Gosz, Associate Dean for Research and Graduate Education at the University of Idaho’s College of Natural Resources
- Rich Pouyat, former Vice President of ESA Public Affairs and research forester with the US Forest Service
- Scott Swinton, Professor of Agricultural, Food & Resource Economics at Michigan State University
- Steven Kraft, Chair of the Department of Agribusiness Economics at Southern Illinois University Carbondale
After the Fire: Approaches to Revitalizing Ecosystem Resources
After the Fire: Approaches to Revitalizing Ecosystem Resources
July 9, 2008
ESA co-sponsored a congressional briefing on land management following forest fires.
Featured speakers:
- Norm Christensen, former ESA President (2007-2008) and a forest ecologist at Duke University
- Dan Neary, a soil scientist with the U.S. Forest Service at the Rocky Mountain Research Station
- Stephen Swallow, a resource economist with the University of Rhode Island
The Sustainability of Cellulosic Biofuels
The Sustainability of Cellulosic Biofuels June 11, 2008
ESA hosted a congressional briefing on the ecological and economic impacts of producing biofuels from cellulosic sources—the leaves, stems, and other fibrous parts of plants.
Featured speakers:
- Phil Robertson, who specializes in crop and soil science at the Kellogg Biological Station at Michigan State University
- Doug Landis, an entomologist from Michigan State University
- Madhu Khanna, an agricultural economist at the University of Illinois