text: Figure 4 describes the evolution of concepts’ associations in the global warming discourse during 
  the 10 years. The red cluster included concepts such as “2012”, “hot”, “summer”, “elnino”, and “snow”, 
  describing the weather abnormalities related to global warming. A notable ﬁnding is that before 2012, 
  global warming’s association with temperature abnormalities and extreme weather was not salient, 