Three pie charts illustrate the results of environmental issues concerning people in three countries.
Overall, the largest proportion of each pie chart was overpopulation in Zambia and Singapore. Furthermore, waste disposal was the biggest amount in Cameroon. But pollution was the lowest in every chart.
It is clear that overpopulation was the biggest concern in Zambia, with 43%. It might be a concern related to global warming. By contrast, pollution and waste disposal had the same percentage of 14% over the period. Meanwhile, overpopulation was the largest in Singapore, at 37%, than other categories. Pollution was the lowest amount 16%, while global warming was around 26%. Waste disposal was 21%.
However, there were different percentages in Cameroon. It can be seen that waste disposal was significantly the highest, with 42%. Overpopulation was the next main issue, at under a quarter. Global warming was 20% and pollution was 16% over the period.