Task: Determine the level of emotion E in the tweet by categorizing it into one of four intensity levels, reflecting the user's emotional expression. 0: no E can be inferred. 1: low amount of E can be inferred. 2: moderate amount of E can be inferred. 3: high amount of E can be inferred.
Tweet: another chunk of #antarctic the size of #wales broke off. The #glee of knowing humans deserve their #extinction. #climatechange
Emotion: joy
Intensity class: 