Percent of replies "(3) Probably not changing" and "(4) Definitely not changing" to D19: "You may have heard the idea that the world's climate is changing due to increases in temperature over the past 100 years. What is your personal opinion on this? Do you think the world's climate is changing?". (1) Definitely changing, (2) Probably changing, (3) Probably not changing, (4) Definitely not changing, (7) Refusal, (8) Don't know. A higher score means that more people believe that the climate is not changing. A lower score means that more people believe that the climate is changing.