Honolulu Mayor Tells All City Departments to Prepare for Sea Level Rise

The city of Honolulu has decided to treat sea level rise as an urgent matter, requiring all the resources of the city.

1 minute read

July 24, 2018, 2:00 PM PDT

By James Brasuell @CasualBrasuell


Oahu

Theodore Trimmer / Shutterstock

Honolulu Mayor Kirk Caldwell last week issued a formal directive for all city departments and agencies "to take action in order to address, minimize the risks from, and adapt to the impacts of climate change and sea level rise," according to a press release from the Mayor's Office [pdf] and the Office of Climate Change, Sustainability, and Resiliency.

"The mayor gave the directive in a press conference Monday after receiving sea level rise guidelines from the the [sic] Honolulu Climate Change Commission, which is led by the University of Hawaii," reports Austin Westfall.

According to the commission, Oahu is the most vulnerable of the Hawaiian Islands. "The report says nearly 4,000 structures on Oahu, most of which are homes or businesses, will be chronically flooded with the three-foot sea level rise. Furthermore, about 18 miles of the island’s coastal roads will become impassable, jeopardizing access to many communities," explains Westfall.

Hat tip to Jason Plautz for sharing the news. Plautz also notes that the directive instructs all city departments and agencies to treat the challenges of climate change and seal level rise as urgent.

Tuesday, July 17, 2018 in Hawaii New Now

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Concrete Brutalism building with slanted walls and light visible through an atrium.

What ‘The Brutalist’ Teaches Us About Modern Cities

How architecture and urban landscapes reflect the trauma and dysfunction of the post-war experience.

February 28, 2025 - Justin Hollander

Complete Street

‘Complete Streets’ Webpage Deleted in Federal Purge

Basic resources and information on building bike lanes and sidewalks, formerly housed on the government’s Complete Streets website, are now gone.

February 27, 2025 - Streetsblog USA

Downtown Los Angeles skyline at sunset with new 6th Street Viaduct arches in foreground.

Downtown Los Angeles on the Rise: A Promising 2025

Fueled by new developments, cultural investments, and a growing dining scene, downtown Los Angeles is poised for significant growth in 2025, despite challenges from recent wildfires and economic uncertainties.

February 21, 2025 - Los Angeles Downtown News

Informational plaque in front of paved walkway next to tall green trees in Black Hawk State Historic Site, Illinois.

Supporting Indigenous Land Reclamation Through Design

Harvard students collaborated with the Sac and Fox Nation to develop strategies for reclaiming and co-managing ancestral lands in Illinois, supporting Indigenous sovereignty through design, cultural storytelling, and economic planning.

17 minutes ago - Harvard GSD

Lush Five Rivers Metropark in Dayton, Ohio with flowers and green trees on a sunny day.

A Plan to Expand Tree Canopy Across Dayton

Dayton is developing an urban forest master plan, using a $2 million grant to expand its tree canopy, address decades of tree loss, and enhance environmental equity across the city.

1 hour ago - Dayton Daily News

Close-up of worker installing white electric heat pump outdoors.

Decarbonizing Homes: The Case for Electrifying Residential Heating

A new MIT study finds that transitioning residential heating from natural gas to electric heat pumps can significantly reduce carbon emissions and operational costs.

2 hours ago - MIT News

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.