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GAO-23-105452 1 (2022-10-18)

handle is hein.gao/gaonxe0001 and id is 1 raw text is: GAOU.S. GOVERNMENT ACCOUNTABILITY OFFICE
441 G St. N.W.
Washington, DC 20548
October 18, 2022
The Honorable Robert Menendez
Chairman
Committee on Foreign Relations
United States Senate
Overseas Real Property: State's Initial Assessment of Natural Hazard Risks Faced by its
Posts
Dear Mr. Chairman:
Climate change and increasingly frequent and extreme weather events have caused a surge in
global natural disasters over the past 50 years, according to a 2021 report by the World
Meteorological Organization.1 The U.S. Department of State has concluded that natural hazards
may pose a threat to the safety and security of its overseas diplomatic assets, consisting of
more than 90,000 personnel and properties valued at approximately $70 billion in over 290
locations.2 According to State, the increasing number and severity of natural hazards due to
climate change heightens the risk of damage to State's overseas locations (posts) and real
property assets, including the office buildings, support facilities, and staff residences that
comprise these posts.
In 2020, State established a Climate Security and Resilience program (CS&R) within State's
Bureau of Overseas Buildings Operations (OBO) to assess natural hazard risk, and proactively
facilitate the identification, planning, and implementation of natural hazard adaptation measures
at U.S. posts.3 As part of those efforts, OBO assesses a variety of natural hazards expected to
affect its posts located in 180 countries.4 For example, a recent OBO study found that, from
2021 to 2035, the number of its facilities affected by extreme heat could more than double.5 In
'See World Meteorological Organization, Atlas of Mortality and Economic Losses from Weather, Climate, and Water
Extremes 1970-2019, WMO-No. 1267 (Geneva: 2021).
2State's assessment of natural hazards uses the term natural hazards to refer to all such hazards, regardless of
whether they are attributable to climate change.
30BO acts as State's overseas real property manager in acquiring, designing, building, operating, and maintaining
the department's real property assets at U.S. embassies and consulates (posts). OBO's mission is to provide safe,
secure, functional, and resilient facilities that represent the U.S. government to the host nation and support the
department's achievement of U.S. foreign policy objectives abroad.
4The eight natural hazards OBO currently considers in its global risk assessment are coastal flooding, riverine
flooding, extreme heat, extreme wind, tsunami, earthquake, landslide, and water stress. OBO is currently
investigating others, such as volcano and wildfire, for future inclusion.
5See U.S. Department of State, Application of Mass Timber, Rammed Aggregate Earth, and Climate Security in
Diplomatic Buildings (Washington, D.C.: March 29, 2021).

GAO-23-105452 State Natural Hazard Assessment

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