The bar chart illustrates the amount of carbon emissions released from three distinct types of gases in the UK from 1990 to 2010.
Overall, oil and coal emissions in the UK both showed a downward trend, while the trend of gas emissions witnessed the reverse. In 1990, coal ranked first in carbon emissions, but over the next 20 years, carbon emissions from gas became the highest.
Regarding the emissions from oil, the UK released 270 million tons of carbon in the first year of the period. After a noticeable decline five years later by nearly 30 million tons, the figure increased slightly in 2000 before starting to fall remarkably, ending with 210 million tons in 2010. A downward trend was also observed in coal emissions; in 1990, coal emitted the highest amount of carbon, at 310 million tons, before experiencing a significant drop to 190 million tons at the end of the period and being the lowest figure among the three.
Considering the remaining category, it can be seen that the UK emitted 220 million tons of carbon from using gas in 1990, making it the lowest among the three types of greenhouse gases at that time. However, over the 20-year period, this figure grew dramatically by approximately 100 million tons, reaching 320 million tons in 2010.