Federal report on human-caused climate change: 'There is no convincing alternative explanation'

Drought in Spain attributed to climate change
(Image credit: David Ramos/Getty Images)

A major federal report published by 13 agencies Friday names humans as the primary cause of global climate change.

"This assessment concludes, based on extensive evidence, that it is extremely likely that human activities, especially emissions of greenhouse gases, are the dominant cause of the observed warming since the mid-20th century," the document says. "For the warming over the last century, there is no convincing alternative explanation supported by the extent of the observational evidence."

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Bonnie Kristian

Bonnie Kristian was a deputy editor and acting editor-in-chief of TheWeek.com. She is a columnist at Christianity Today and author of Untrustworthy: The Knowledge Crisis Breaking Our Brains, Polluting Our Politics, and Corrupting Christian Community (forthcoming 2022) and A Flexible Faith: Rethinking What It Means to Follow Jesus Today (2018). Her writing has also appeared at Time Magazine, CNN, USA Today, Newsweek, the Los Angeles Times, and The American Conservative, among other outlets.