Andrew Liveris, chairman and chief executive officer of the Dow Chemical Co., speaks during the 2017 CERAWeek by IHS Markit conference in Houston, Texas, U.S., on Friday, March 10, 2017. CERAWeek gathers energy industry leaders, experts, government officials and policymakers, leaders from the technology, financial, and industrial communities to provide new insights and critically-important dialogue on energy markets. Photographer: F. Carter Smith/Bloomberg via Getty Images
