David Henkin

Deputy Managing Attorney

Mid-Pacific Office

David Henkin, Deputy Managing Attorney of the Mid-Pacific office.

Bar Admissions

HI, CA (inactive)

David Henkin

Deputy Managing Attorney Mid-Pacific Office

Miranda Fox
Public Affairs and Communications Strategist
mfox@earthjustice.org

David Henkin defends Hawaiʻi’s precious landscapes, from Oʻahu’s Mākua Valley to the surrounding tropical waters.

He was born and raised in Los Angeles, California. He graduated summa cum laude from Yale College in 1987 and then attended Yale Law School, where he was an editor on the Yale Law Journal and active in the Environmental Law Association. Following graduation from law school in 1991, David clerked for the Honorable R. Lanier Anderson III, United States Court of Appeals for the Eleventh Circuit, before moving to the Bay Area to pursue a career in public-interest environmental litigation.

In 1995, David moved to Hawaiʻi to join Earthjustice’s Mid-Pacific office in Honolulu, and became a senior attorney in 1998.

At Earthjustice, David has filed cases on a wide variety of issues, including the Endangered Species Act, the National Environmental Policy Act, the Clean Water Act, and various Hawaiʻi environmental laws.

David’s work has focused on securing Endangered Species Act protection for Hawaiʻi’s unique and imperiled flora and fauna, including a landmark 1998 case that held unlawful the U.S. Fish and Wildlife Service’s refusal to designate critical habitat for 245 endangered and threatened plants endemic to Hawaiʻi.

Expert Posts & Articles

Earthjustice attorney David Henkin holds a Newell’s shearwater chick in Maui.
August 18, 2020

Fixing Hawai'i’s Power Lines and Street Lights to Save Seabirds and Sea Turtles

Bad infrastructure in Hawaiʻi is putting wildlife at grave risk. The solution is actually quite simple.
November 5, 2015

New Navy Agreement Means Dolphins Won’t Die in Vain

A recent settlement agreement with the Navy ensures that marine mammal deaths will now be investigated to help avoid additional military sonar-related deaths.
Dolphins swim in advance of Virginia-class attack submarine PCU Minnesota.
April 15, 2015

Whales Blow Hole in Sonar Plan

A judge tells the Navy that it doesn’t need access to every square inch of the ocean to conduct training exercises. There is a better way to protect both our country and our wildlife.
Algal blooms at Kahekili.
June 11, 2014

Maui County Facing Fine for Dirty Water Dumping

County subject to millions in penalties for illegal discharges from Lahaina injection wells
December 13, 2013

Defending a Species Paradise

Earthjustice uses the ESA to protect Hawai‘i’s many vulnerable species.

Miranda Fox
Public Affairs and Communications Strategist
mfox@earthjustice.org

Bar Admissions

HI, CA (inactive)

Quoted in the News

August 7, 2026

Inside Climate News

Trump Promotes Commercial Fishing in Protected Pacific Marine National Monuments

“We’re planning to take the administration to court and sue them. The proclamation itself is unconstitutional, illegal, and any efforts to implement the proclamation and give the green light to commercial fishing would be likewise illegal.” 
June 12, 2026

E&E News

Trump opens protected Pacific waters to commercial fishing

“Commercial fishing in our protected marine monuments would not only be disastrous for the environment, but also does nothing for the fishing industry. Safe havens allow marine life to maintain healthy populations and prevent corporate greed from stripping the ocean of life.”
April 27, 2025

The Guardian

Trump order to loosen fishing regulations poses major risks, experts warn

“When he is saying that fisher folks from Hawaii or American Samoa need to travel for days to go fish. Well, you need to travel for days to get to these remote Pacific islands. They’re some of the most remote places on Earth … and they’re certainly not right next to Hawaii.”
March 19, 2025

Mongabay

Rep from American Samoa calls for opening protected Pacific waters to tuna fishing

“In the Antiquities Act, Congress gave the President the authority to create national monuments, not to dismantle them.”
February 2, 2022

Associated Press

US Navy appeals Hawaii order to drain military fuel tanks

“It is now time for the Navy to stop fighting the emergency order, which seeks to remove the existential threat that the Red Hill facility poses to Oahu’s people. If the Navy won’t voluntarily defuel the Red Hill tanks, we will vigorously defend the emergency order in court.”
February 1, 2022

Maui Now

Hawaiʻi lawmakers, environmental groups ‘disappointed’ with DoD plans to appeal emergency order at Red Hill

“If the Navy’s contamination of its own water system last November taught us anything, it’s that we cannot leave it up to the military to decide what is needed to protect O‘ahu’s irreplaceable drinking water supply.”

Latest Press Statements

Photo of Pågan Island ca. 1970.
August 6, 2026

U.S. Navy Scales Back Destructive Live-Fire Training in Northern Mariana Islands

Robust public input and disclosures hold the Navy to limited training on only one island
Milletseed butterflyfishes and snorkeler near surface atPapahānaumokuākea Marine National Monument.
June 11, 2026

Trump Administration Continues Attacks on Pristine Pacific Marine Monuments

New proclamation signed to open marine monuments to commercial fishing
Several sharks swim in a school of smaller fish
August 9, 2025

Hawai‘i Federal Court Nullifies Fisheries Service Letter Allowing Destructive Fishing in Pacific National Monument

Court strikes down free pass to commercial fishers in protected areas granted following Trump proclamation in April
Baby Hawaiian Green sea turtle / honu (Chelonia mydas) are released into deep water away from predators at French Frigate Shoals near Tern Island.
June 25, 2025

Western Pacific Fishery Management Council Targets World’s Largest Conservation Area

Commercial fishing within national monument boundaries threatens protected marine habitats, endangered species, and the long-term health of our world’s oceans
Butterfly fish feed in the waters of Johnston Atoll National Wildlife Refuge in the Pacific Islands Heritage Marine National Monument.
May 22, 2025

Lawsuit Challenges Trump Order Opening Pacific Monument to Commercial Fishing

April's proclamation threatens indigenous heritage, endangered species, and pristine marine ecosystems in Pacific Islands Heritage Marine National Monument