Katharine Hayhoe, the Texas Tech atmospheric scientist who penned a chapter on the reality of climate change for Newt Gingrich’s forthcoming book on the environment, was shocked to learn on Friday that the GOP presidential candidate pulled her work from the collection.

When a climate denier questioned Gingrich Thursday on the campaign trail in Carroll, Iowa, about the chapter, Gingrich responded that the chapter would not be included in the book. “We didn’t know that they were doing that and we told them to kill it,” he said.

Hayhoe had not heard that the chapter had been cut until asked about it by reporters. “What an ungracious way to find out, eh?” she tweeted Friday.

According to Think Progress, Rush Limbaugh had slammed Gingrich for his association with a “babe named Hayhoe.” The Texas Tech associate professor came to Limbaugh’s attention when Neela Banerjee profiled her for the Los Angeles Times in December, writing:

Most climatologists refuse to answer skeptics, preferring to let the research speak for itself. Hayhoe is one of a small but growing number of scientists willing to engage climate change doubters face to face. Unlike most of her colleagues, she is driven as much by the tenets of her faith as the urgency of the science.

Hayhoe is a rare bird: a scientist who is both an evangelical Christian and a climate change evangelist. “It’s a little like coming out of the closet, admitting that you are a Christian and a scientist,” she told PBS’s NOVA last June. Hayhoe, the daughter of missionaries, is married to an evangelical pastor, according to the National Journal.

Hayhoe’s stance on climate change is unwavering: “Among climate scientists—people who spend their lives researching our world—there is no debate regarding the reality of climate change and the fact that humans are the primary cause,” she told Christian writer Jonathan Merritt in an interview.

Watch Newt Gingrich dismiss Hayhoe’s “100+ unpaid hrs” of work in 23 seconds: