Carly Fiorina,

  • Republican presidential candidate Carly Fiorina speaks at the Iowa GOP's Growth and Opportunity Party at the Iowa state fair grounds in Des Moines, Iowa, Saturday, Oct. 31, 2015.

    Republican presidential candidate Carly Fiorina dismissed the idea that climate change was a major security threat Sunday, a dismissal that ignores warnings from top security experts.

    “It is delusional for President Obama and Hillary Clinton and anyone else to say that climate change is our near-term most severe security threat,” she told Fox News Sunday’s Chris Wallace. “It is ISIS, period, followed closely by Iran and perhaps Russia.”

    Obama has spoken about the security threats posed by climate change before — in May, he said climate change “constitutes a serious threat to global security, an immediate risk to our national security, and, make no mistake, it will impact how our military defends our country.” But Obama’s statements aren’t empty warnings — they’re backed up by military and security experts. Last year, the Pentagon released a report that called climate change a “threat multiplier” whose impacts have the ability to “intensify the challenges of global instability, hunger, poverty, and conflict.”

    “Climate change will affect the Department of Defense’s ability to defend the nation and poses immediate risks to U.S. national security,” the report reads. “Weather has always affected military operations, and as the climate changes, the way we execute operations may be altered or constrained.”