This website is the digital version of the 2014 National Climate Assessment, produced in collaboration with the U.S. Global Change Research Program.

For the official version, please refer to the PDF in the downloads section. The downloadable PDF is the official version of the 2014 National Climate Assessment.

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Welcome to the National Climate Assessment

The National Climate Assessment summarizes the impacts of climate change on the United States, now and in the future.

A team of more than 300 experts guided by a 60-member Federal Advisory Committee produced the report, which was extensively reviewed by the public and experts, including federal agencies and a panel of the National Academy of Sciences.

Explore the effects of climate change
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Figure 5.1: Possible Future Flood Depths in Mobile, AL with Rising Sea Level

Possible Future Flood Depths in Mobile, AL with Rising Sea Level

Figure 5.1: Many coastal areas in the United States, including the Gulf Coast, are especially vulnerable to sea level rise impacts on transportation systems.1,2,3 This is particularly true when one considers the interaction among sea level rise, wave action, and local geology.4 This map shows that many parts of Mobile, Alabama, including critical roads, rail lines, and pipelines, would be exposed to storm surge under a scenario of a 30-inch sea level rise combined with a storm similar to Hurricane Katrina. Not all roads would be flooded if they merely run through low areas since some are built above flood levels. A 30-inch sea level rise scenario is within the range projected for global sea level rise (Ch. 2: Our Changing Climate, Key Message 10). (Figure source: U.S. Department of Transportation 2012

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References

  1. CCSP, 2008: Impacts of Climate Change and Variability on Transportation Systems and Infrastructure: Gulf Study, Phase I. A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research. Final Report of Synthesis and Assessment Product 4.7. M.J. Savonis, V.R. Burkett, and J.R. Potter, Eds. U.S. Department of Transportation, 445 pp. URL | Detail

  2. CCSP, 2009: Coastal Sensitivity to Sea-Level Rise: A Focus on the Mid-Atlantic Region. A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research. J.G. Titus, E. K. Anderson, D.R. Cahoon, D.B. Gesch, S.K. Gill, B.T. Gutierrez, R. E. Thieler, and J. S. Williams, Eds. U.S. Environmental Protection Agency, 320 pp. URL | Detail

  3. Gutierrez, B. T., N. G. Plant, and R. E. Thieler, 2011: A Bayesian network to predict coastal vulnerability to sea level rise. Journal of Geophysical Research, 116, F02009, doi:10.1029/2010JF001891. | Detail

  4. Suarez, P., W. Anderson, V. Mahal, and T. R. Lakshmanan, 2005: Impacts of flooding and climate change on urban transportation: A systemwide performance assessment of the Boston Metro Area. Transportation Research Part D: Transport and Environment, 10, 231-244, doi:10.1016/j.trd.2005.04.007. | Detail

The National Climate Assessment summarizes the impacts of climate change on the United States, now and in the future.

A team of more than 300 experts guided by a 60-member Federal Advisory Committee produced the report, which was extensively reviewed by the public and experts, including federal agencies and a panel of the National Academy of Sciences.

United States Global Change Research Program logo United States Global Change Research Program participating agency logos