As international business and political leaders at the World Economic Forum weigh slowing economic growth, Coca-Cola CEO and incoming Chairman James Quincey has another concern — uncertainty.

"I think that in a way, the biggest issue is not so much that we see a little less growth, but there's more uncertainty," Quincey said Wednesday in an interview with CNBC's "Worldwide Exchange" in Davos, Switzerland.

Quincey does agrees with other business titans in Davos, including Blackstone CEO Steve Schwarzman, that economic growth will slow this year, but he doesn't see that as a headwind just yet.