State-of-the-art report on Climate Change Adaptation. Here are two very good sites for the latest work done on climate change adaptation in the US:

• FTA Climate Change Adaptation
https://www.transit.dot.gov/regulations-and-guidance/environmental-programs/fta-climate-change-adaptation-initiative

• U.S. Environmental Protection Agency (EPA)
https://www3.epa.gov/climatechange/impacts-adaptation-renamed/fed-programs.html