Katherine Carpenter keeps her 6-month-old daughter River occupied while she waits for her turn to speak at a listening session on the U.S. Environmental Protection Agency's proposal to repeal the Clean Power Plan at the main library branch in San Francisc

Katherine Carpenter keeps her 6-month-old daughter River occupied while she waits for her turn to speak at a listening session on the U.S. Environmental Protection Agency's proposal to repeal the Clean Power Plan at the main library branch in San Francisco, Calif. on Wednesday, Feb. 28, 2018. (Photo by Paul Chinn/San Francisco Chronicle via Getty Images)