The chart illustrates how much CO2 was released by five regions from 2000 to 2020, and how it is predicted to be released to 2040. The units were measured in millions of metric tonnes.
Overall, it can be seen that region 1 witnessed a slight fall in 2020, and it was projected to continue to decline gradually until 2040. Regions 2 and 4 both remained relatively stable up to 2020, and these data are expected to keep their trend until 2040, while region 3 and 5 saw an upward trend until 2020; these figures are projected to continue increasing until 2040. Among these, region 1 recorded the highest figure throughout the time frame, while region 5 was the lowest.
Regarding region 1, the period between 2000 and 2020 saw a moderate decline, from exactly 8 million tonnes to around 7, despite an initial rise to higher than 9 units. This statistic is predicted to keep its decline to 7 million tonnes in 2040; however, the amount of emissions released by Region 1 will still be the highest datum throughout the time span. The figure for Region 2 oscillated slightly between around 5.7 and 6.3 units, from 2000 to 2020, and it is projected to continue fluctuating between about 5.9 and 6.4 million tonnes until 2040. While that of Region 5 also saw a fluctuation from 2000 to 2020, varying from approximately 0.9 to around 1.9 units, this is predicted to continue oscillating until 2040.
In terms of region 3, the data increased significantly from 4 to around 4.9 million tonnes, despite an initial decrease to just higher than 3 units. Region 3 remained relatively unchanged until 2020, and it is projected to keep its trend until around 2030, slightly fluctuating between around 4.9 and 5.1 units before rising to approximately 6 by the end of the time frame. The figure for region 4 rose gradually from around 2.8 in 2000 to nearly 4 units in 2020, despite remaining slightly stable in 2010. It was predicted to continue its rise to 5 million tonnes in 2040.
