The bar chart illustrates the amount of carbon dioxide released to the environment from 2000 to 2020 while the line graph demonstrates the number of automobiles in England and Wales.
Overall, the amount of emissions released was shown to increase because the number of vehicles had grown from 2000 to 2020. While the amount of emissions released by cars was the highest over the period, the figure for public transport was the lowest.
In 2000, the figure for emissions released by cars was the highest with 20 tons, whereas buses only released nearly 8 tons. The amount of emissions caused by cars considerably increased to 25 tons in 2010 and over 25 tons at the end of the period. The amount of emissions that were discharged by vans and trucks was respectively 13 tons and 16 tons. After 2 decades, it was seen that these figures of emissions released by vans and trucks increased to 15 tons and roughly 23 tons. By contrast, buses discharged the lowest emissions into the air with roughly 8 percent, and it remained unchanged over the period.
In 2000, the number of automobiles in England and Wales was 20 million. It increased 25 percent to 25 million vehicles in 2005. After that, the data on automobiles steadily increased and reached its peak with close to 60 million vehicles in 2020.
