YouTube puts context label on Democratic presidential candidate Jason Palmer’s video: YouTube imposed a fact-checking label on presidential candidate Jason Palmer’s March 26 video, “@Reuters Jason Palmer beats Biden in American Samoa: who is he?” 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.