ROME — Long before the industrial revolution and fossil fuels, “climate change” was wreaking havoc on the health of ancient Romans, Smithsonian magazine contends. Citing a study published in the journal Science Advances, Smithsonian underscores a correlation between cold, dry periods in ancient Rome and “devastating bouts of fatal illness” between 200 BC and 600 AD. Whereas Rome enjoyed stable weather from 200 to 100 BC, it later suffered “three very cold periods,” all of which “line up with documented plagues,” states Smithsonian writer Sarah Kuta. The first cold spell, which struck the Roman Empire between 160 and 180 AD,...