CNN Analyst: Morally Imperative to Address Climate Change

CNN senior political analyst David Gergen on Wednesday said his recent trip to Greenland prompted a change in his thinking on climate change, and it is morally imperative to deal with the issue.

"I went there thinking it was a practical imperative to deal with climate change," Gergen said during a discussion with CNN anchors Poppy Harlow and Jim Sciutto. "I came away feeling it's a moral imperative. When you see what's happening in Greenland, it is an early set of signals about what's going to happen to the globe."

The massive ice sheet covering Greenland melted at a record pace this year, according to scientists, and even a small increase in the rate of melting could threaten millions of people who live in low-lying areas.

"There's a growing danger that the icecap will melt in Greenland and we'll have — there won't be a big icecap in the summer," Gergen said. "The net result of that is that we're going to have a rise in sea levels, added to other sources of new water, higher water. We could have cities in the United States engulfed in floods. So, it's serious."

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