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NEPA and Climate Change

ICF combines extensive subject matter expertise and thought leadership in both environmental impact and climate-related analysis.

For more than two decades, courts have ruled on the need for greenhouse gas (GHG) emissions and climate impact analyses in National Environmental Policy Act (NEPA) reviews. ICF has conducted these analyses in high-profile environmental impact statements (EISs).

While often more complex than the other analyses, our climate-related analyses are coordinated with other aspects of the EIS, thereby streamlining the efforts for the analyses. With numerous groups challenging EISs on climate change over the years, these analyses provide a strong defense against legal challenges. Agencies have engaged ICF to conduct climate analyses for EISs that had been remanded or where a Draft EIS had received substantial criticism for an inadequate analysis.

ICF can assist clients with preparing thorough, accurate, and legally defensible analyses. ICF has extensive practical experience with the requirements of all major U.S. federal and state environmental laws and regulations and routinely conducts environmental reviews for many different federal agencies under NEPA.

ICF has expertise in all aspects of environmental management and is routinely called upon to complete analyses on significant, complex, and high-profile projects, such as the National Highway Traffic Safety Administration (NHTSA) Corporate Average Fuel Economy Standards Environmental Impact Statement (EIS), which included—for the first time ever in a NEPA analysis—modeling of a federal action’s incremental effects on global climate change impacts. Our work includes:

  • Preparing EISs for landmark projects
  • Integrating climate impact analysis into NEPA reviews
  • Measuring and analyzing GHG emissions
  • Modeling and analyzing climate impacts
  • Analyzing climate impacts on resources
  • Assessing the life-cycle GHG emissions of a federal action
  • Developing GHG reduction and climate resilience strategies
  • Training practitioners on how best to integrate climate considerations into NEPA analyses

ICF offers a full spectrum of climate services, from GHG emissions measurement and mitigation to climate impacts assessment. We have expertise across the full range of project types (energy, land use, and resource management) and climate-sensitive sectors, including energy, water, and transportation infrastructure; health; ecosystems; agriculture; and forestry. We have worked on these issues for a variety of public and private sector clients, including local, state, and federal agencies and the U.S. Global Change Research Program.

Aerial view of Delta