March 8, 2025 — A federal judge in Hawaii ruled Thursday that the National Marine Fisheries Service had wrongly denied climate change protections to 20 threatened coral species in the Indo-Pacific and Caribbean, even though the service had previously identified climate change as the main threat to these corals’ survival.
U.S. District Judge Micah Smith granted partial summary judgement to the Center for Biological Diversity, which petitioned for the corals’ protection in 2020 and sued the service in 2023 for regulations to address climate change, a ban on international trade, and protections against local threats like development and poor water quality.
“I’m delighted by this court ruling because it underlines climate change’s overwhelming threat to imperiled corals,” said Emily Jeffers, an attorney at the Center for Biological Diversity. “We’ve lost half of the world’s coral reefs in the past 40 years, and if we don’t act quickly the rest could disappear forever by the end of this century.”
Smith determined that the service failed to explain properly why it wouldn’t protect corals from climate change.
The agency had claimed such regulations would have “limited effectiveness,” but Smith found this explanation inadequate, especially since climate change poses the greatest threat to these species. The court labeled this decision “arbitrary and capricious” and ordered the agency to reconsider.
“In reaching this conclusion, it is worth noting what NMFS did not say. NMFS did not conclude that it lacked the legal authority to adopt Section 4(d) regulations to address climate change. Nor did it say that it was unaware of what Section 4(d) regulations it might adopt to accomplish those ends, or that the center’s petition suffered from a lack of clarity,” Smith wrote.
The judge similarly overturned the service’s decision not to issue regulations protecting Caribbean coral species from local threats, finding that the agency also provided no proper justification for this choice.