Figure 8.1

National Oceanic and Atmospheric Administration
Murielle Gamache-Morris

This figure appears in chapter 8 of the Impacts, Risks, and Adaptation in the United States: The Fourth National Climate Assessment, Volume II report.

This figure shows that cumulative damages (in 2015 dollars) to coastal property across the contiguous United States would be significantly reduced if protective adaptation measures were implemented, compared to a scenario where no adaptation occurs. Without adaptation, cumulative damages under the higher scenario (RCP8.5) are estimated at $3.6 trillion through 2100 (discounted at 3%), compared to $820 billion in the scenario where cost‐effective adaptation measures are implemented. Under the lower scenario (RCP4.5), costs without adaptation are reduced by $92 billion relative to RCP8.5 and are $800 billion with adaptation. Note: The stepwise nature of the graph is due to the fact that the analysis evaluates storm surge risks every 10 years, beginning in 2005. Source: adapted from EPA 2017.0b30f1ab-e4c4-4837-aa8b-0e19faccdb94

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This figure was created on June 23, 2017.

This figure was submitted on November 23, 2018.

Provenance

This figure was derived from scenario rcp_4_5
This figure was derived from scenario rcp_8_5

References :

• Multi-Model Framework for Quantitative Sectoral Impacts Analysis (0b30f1ab)

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