loading page

The Fourth U.S. National Climate Assessment: Hawai‘i and the Pacific Islands region
  • +8
  • Zena Grecni,
  • Victoria Keener,
  • David Helweg,
  • Susan Asam,
  • Seema Balwani,
  • Maxine Burkett,
  • Charles Fletcher,
  • Thomas Giambelluca,
  • Jeffrey Polovina,
  • Malia Nobrega-Olivera,
  • Gordon Tribble
Zena Grecni
East-West Center

Corresponding Author:[email protected]

Author Profile
Victoria Keener
East-West Center
Author Profile
David Helweg
DOI Pacific Islands Climate Science Center
Author Profile
Susan Asam
Author Profile
Seema Balwani
National Oceanic and Atmospheric Administration
Author Profile
Maxine Burkett
University of Hawai‘i at Mānoa
Author Profile
Charles Fletcher
University of Hawaii at Manoa
Author Profile
Thomas Giambelluca
Univ Hawaii Manoa
Author Profile
Jeffrey Polovina
Honolulu Laboratory
Author Profile
Malia Nobrega-Olivera
University of Hawai‘i at Mānoa
Author Profile
Gordon Tribble
US Geological Survey
Author Profile


Chapter 27 of the 4th U.S. National Climate Assessment, Volume 2, assesses climate impacts, future risks, and adaptation in Hawai‘i and the U.S.-Affiliated Pacific Islands. The author team collaboratively developed the chapter’s Key Messages and narrative. Webinars and an informal survey of stakeholders informed the selection of focal sectors. To be inclusive of the vast region and expertise, the authors convened six half-day workshops on key sectors, including remote participation from experts in the U.S. Affiliated Pacific Islands. In all, the chapter involved more than 60 technical contributors. Authors reviewed major areas of risk and new understanding since the last national assessment, including on issues such as: (1) reliable and safe water supplies, (2) marine and terrestrial ecosystem health, (3) sea level rise and coastal impacts, (4) impacts on community livelihoods and well-being, including Indigenous peoples. Under these climate-related challenges to island sustainability, diverse groups are coming together to combine forward-looking policies with adaptation strategies. An integrated theme throughout the chapter is that early intervention can lower the economic, environmental, and social and cultural costs from a changing climate.