Wednesday on the NewsHour, the impact being felt across the globe as climate scientists declare this summer the hottest in the Northern Hemisphere's history. After all defendants in the Georgia election case plead not guilty, the judge weighs when and how a trial will proceed. Plus, the head of the World Food Programme in Afghanistan details the dire plight of the millions facing severe hunger. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders