text: Association networks surrounding #climatechange and #globalwarming showed diﬀerent 
  properties. The climate change discourse included 38,821 hashtags, whereas the global warming 
  discourse only contained 8788 hashtags. Table 1 displays the 50 most signiﬁcant hashtags in the 
  two discourses based on centrality. As some hashtags were used in the form of an abbreviation or 
  phrase, explanations are provided in the table. Two networks shared 32 out of the 50 most signiﬁcant 
  words. Hashtags “canada”, “cdnpoli”, “sdgs”, “biodiversity”, “education”, “environmental”, “cop24”, 
  “sustainable”, “auspol”, “food”, “agriculture”, “cleanenergy”, “renewableenergy”, “renewables”, 
  “emissions”, “coal”, “fossilfuels”, and “cop21” only showed up on the top 50 list of the “climate change” 
  network. Hashtags “tcot”, “california”, “p2”, “nyc”, “snow”, “agw”, “summer”, “global”, “winter”, 
  “india”, “planet”, “heatwave”, “hoax”, “nasa”, “algore”, “world”, “oil”, and “eco” were unique on the 
  top 50 list of the global warming network. The two lists only shared three out of the top ﬁve hashtags. 
  In the #climatechange network, “climateaction” was ranked third place and “sustainability” was 
  ranked fourth place, whereas they were ranked signiﬁcantly lower, 17th and 22nd, respectxively, in the 
  #globalwarming network. In the #globalwarming network, “earth” and “weather” were among the 
  top ﬁve nodes, whereas they were ranked 14th and 24th in the #climatechange network, respectively. 