YouTube puts context label on GOP presidential candidate Vivek Ramaswamy’s video: YouTube imposed a fact-checking label on presidential candidate Vivek Ramaswamy’s Dec. 2 video, “Vivek Ramaswamy: Speaking the Unspeakable about CO₂ Pipelines and the Climate Change Agenda.” YouTube put a context label that linked to the United Nations and claimed, “Climate change refers to long-term shifts in temperatures and weather patterns, mainly caused by human activities, especially the burning of fossil fuels.” A 2022 study found that atmospheric CO₂ from fossil fuels was too low to cause global warming.