The pie charts show the environmental problems that people in three countries, including Zambia, Singapore and Cameroon, are most concerned about.
Overall, overpopulation is the biggest problem in Zambia and Singapore, while waste disposal is the main concern in Cameroon. Pollution is one of the least concerning problems in all three countries.
In Zambia, overpopulation is the biggest concern, accounting for 43%. Global warming is the second highest, at 29%, while pollution and waste disposal both make up 14%. In Singapore, overpopulation is also the main problem, with 37%. Global warming accounts for 26%, followed by waste disposal at 21%. Pollution has the lowest percentage, at 16%.
In Cameroon, the results are quite different. Waste disposal is the biggest concern, making up 42% of the total. Overpopulation is the second highest problem, at 23%, while global warming accounts for 19%. Pollution is the least concerning issue, with only 16% of people choosing it.
