Average reply to D20 and D21: "How much have you thought about climate change before today?". (1) Not at all, (2) Very little, (3) Some, (4) A lot, (5) A great deal. Answers (7) Refusal and (8) Don't know are deleted.

D20 was only asked to those who replied "(4) Definitely not changing" to question D19 "Do you think climate is changing?". D21 is the same question but was asked to everyone else. In this dataset, we combined the replies for D20 and D21 before taking an average. A higher score means that a larger part of the population thought about climate change prior to the survey. A lower score means that a smaller part of the population thought about climate change prior to the survey.