Business Insider: The highest temperature ever recorded was 134.06 degrees Fahrenheit in Death Valley, California. By 2100, climate change could make that extreme a typical hot summer day in the Persian Gulf. And the worst heat could be in Dhahran, Saudi Arabia, according to a study published Oct. 26 in Nature Climate Change. With 1.6 million people living in the metropolitan area, Dhahran hosts the headquarters of the Saudi Arabian Oil Company, a.k.a. Aramco, which owns the largest oil reserves in the world. ...