How changes to Endangered Species Act regulations could hurt wildlife

image via New Scientist

August 28, 2026, 10:00 AM

• •The article is a Science Quickly podcast transcript about recent changes to how the U.S. Endangered Species Act is implemented.
• •Former NOAA marine biologist Lynne Barre says removing automatic protections for newly listed threatened species could delay or weaken safeguards.
• •The piece says rescinding the ESA regulatory definition of “harm” may leave habitat destruction to be interpreted case by case in court.
• •Barre argues habitat protection is central to species recovery, citing salmon, southern resident orcas and gray whales.
• •The discussion links weaker habitat protections to effects on tribal treaty rights, restoration jobs, food systems and broader ecosystem health.

This Scientific American podcast transcript examines recent regulatory changes to the U.S. Endangered Species Act and their potential effects on endangered wildlife. Former NOAA marine biologist Lynne Barre says ending automatic protections for threatened species and rescinding the ESA definition of “harm” could weaken habitat safeguards. She argues that, without clear protection for habitat modification, disputes will increasingly be settled in court rather than by expert agencies. The discussion also says the changes could affect tribal treaty rights, restoration work, local economies and ecosystem health beyond the listed species themselves.

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