Kate Marvel, a widely known climate scientist and author, has resigned from her position at NASA, citing the Trump administration’s attacks on climate science in the United States.

Dr. Marvel, who trained as an astrophysicist before turning to the Earth’s atmosphere, said in an interview that the administration’s actions made it impossible to remain at an agency that she loved.

“It wears you down after a while,” said Dr. Marvel, who announced her resignation on Tuesday. “None of my internally funded science projects were funded. I wrote a couple other proposals, which, as far as I know, have fallen into a black hole.”

Bethany Stevens, a NASA spokeswoman, declined to answer questions about Dr. Marvel’s resignation, saying “it would be inappropriate for the agency to comment on personnel matters.”

Dr. Marvel joins an estimated 95,000 employees who have left federal science agencies through layoffs, retirements or resignations since Mr. Trump returned to the White House last year. Of those, an estimated 10,000 held doctorate degrees in the sciences.