Former Secretary of State John Kerry said Wednesday in Switzerland that "people will die" because of President Trump's decision to pull the United States out of the Paris Climate Accord.

Speaking in Davos at the World Economic Forum, Kerry told CNBC he is "disappointed when a president of the United States lies."

"There's no burden that Paris did not place outside the burdens levied by any other country," Kerry, a former Massachusetts senator, said.

Kerry blasted Trump on several fronts, wishing aloud that there was a legal capacity to "hold people liable for such an insane decision."

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"People will die because of this president's decision," he said.

Kerry said Trump is one of many with a "burden of ignorance" toward science, and credited the several governors who bucked the president by passing resolutions to keep their states in line with the Paris agreement.

The moderator of the discussion asked Kerry what he would do if he met with Trump on the issue, in order to get the president on his side.

Kerry responded that Trump does not have the "capacity" to take climate change seriously and would instead insist he resign the presidency.

Watch more above.

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