Vivek Ramaswamy, the entrepreneur turned politician, constructed his climate comment at last week’s Republican debate very precisely. “The climate agenda is a hoax,” he said to the raucous audience. For years, many Republicans, most notably Donald Trump, have claimed that climate change is a hoax. Inserting the word “agenda” into the once-common GOP refrain, may seem minor, but it represents a significant evolution. [time-brightcove not-tgx=”true”] The signals of climate change have become increasingly present—think of the record-setting extreme heat and near-constant flooding—and leading Republicans can no longer feasibly deny that climate change is happening.