"Science shows that climate change will reduce food productivity and food security at the same time our world's population is growing and requiring us to feed more people with fewer natural resources," John Bryant, chairman and chief executive of Kellogg Company, said in a The move comes a year after Kellogg, along with its chief rival General Mills, took heat for failing to curb their carbon emissions despite the acute risk climate change poses to food firms. In a The public announcement, timed to coincide with the second week of the COP21 climate talks in Paris , helps hold Kellogg accountable to its own goals and empowers employees that care about the company's carbon footprint.