The bar chart compares the amount of carbon dioxide released into the atmosphere by different income groups in 1990 and 2000 while the pie chart shows the proportion of the world’s population represented by each income group in 2000. Overall, the high income group contributes to the carbon dioxide released most, whereas middle income and low income groups show somewhat similar patterns. Regarding the pie chart, the high income group has the highest percentage while the low income group has the lowest.
Generally, only high income groups witnessed a decrease in the amount of carbon dioxide released. First, the figure for the high income group was 70 metric tones in 1990, compared to 60metric tones in 2000. When it comes to the middle income group, they released 15 metric tones of carbon dioxide which increased to 22 metric tones in 2000. The low income group showed almost similar patter, but its figure in 1990 was lower at around 13 metric tones, however it grew to the same amount as the middle income group in 2000 which was 22 metric tones.
Turning to the pie chart, it was clear that the high income group was the most dominant with almost half of the population. The second highest percentage belonged to the middle income group at approximately 34% followed by the low income group at about 18%.
