Los Angeles (AFP) – Raging floods, devastating fires, powerful thunderstorms and a dangerous heat wave affecting a third of the population: the United States was being walloped Tuesday by climate-related catastrophes. A series of slow motion disasters is gripping the country as it enters summer, with warnings of misery for months to come in some areas. Around 120 million people were under some sort of advisory as a heat wave scorched the Upper Midwest and the Southeast. “A dome of high pressure is expected to generate well-above-normal to record-breaking temperatures across the region both tod…