The line graph illustrates the number of vehicles in millions in England and Wales between 2000 and 2020, while the bar chart shows the amount of CO2 emitted in tonnes from four types of vehicles in 2000, 2010, and 2020.
Overall, there is a gradual increase in the number of vehicles throughout the period and is predicted to spike by 65 million in 2020. Similarly, the CO2 emission generally rose for all the categories of vehicles among which cars contributed the most and buses the least.
In 2000, there were about 20 million vehicles in England and Wales. The figure climbed to 30 million in 2005. Five years later the number went up to 35 million; an upward trend followed in 2015 where there were approximately 50 million vehicles. It is anticipated that the average count of vehicles by 2020 will be around 61 million.
Regarding the CO2 emissions, in the year 2000, cars contributed to about 2.3 tonnes making them the largest shareholder followed by trunks by approximatey 0.6 tonnes making them the second dominant source. Vans and buses were the least producers by about 0.5 tonnes and 0.3 tonnes respectively. After a decade in 2010 cars were still dominated by 2.6 tonnes with trucks coming to the next by 0.9 tonnes. Vans showed a slight jump of 0.7 tonnes same goes for the buses by 0.3 tonnes. In 2020, the cars produced nearly 3 tonnes of CO2, after which came the trunks with 1.6 tonnes. A slight upturn was noted for vans by 0.7 tonnes and buses by 0.4 tonnes