Several countries in the Gulf and Iran recorded the highest temperatures in the world on Saturday, as a new heat wave rolled over the Middle East and Europe. Cities in Iraq, Kuwait and Oman topped the list of hottest cities across the world on 18 June, registering temperatures ranging between 49 and 50.4 degrees Celsius. The highest temperature, 50.4 degrees Celsius, was recorded in the city of Amarah in the Iraqi marshes, followed by several cities in Iran. Middle East Heat Wave:Today 18 June The UAE rose to 49.8C,while Iran yesterday returned >50C. Very hot nights as well: 37.4C of Min. Temp…