The line graph illustrates the amount of greenhouse gas emissions produced from three different sources, namely oil, coal and gas, in the UK over a 20-year period between 1990 and 2010.
Overall, gas emissions experienced a steady increase throughout the period, whereas coal emissions showed a consistent decline. Meanwhile, oil emissions decreased slightly over the given timeframe. It is also noticeable that coal was the largest source of emissions at the beginning, while gas became the highest contributor by the end of the period.
In 1990, gas emissions stood at around 200 million tons. This figure then rose gradually over the following two decades, reaching approximately 330 million tons in 2010. In contrast, coal emissions started at about 320 million tons, making it the highest figure among the three sources. However, this amount declined steadily and fell to roughly 180 million tons by the end of the period.
Regarding oil emissions, the figure was relatively stable compared with the other sources. It began at approximately 270 million tons in 1990 and experienced a marginal decrease over the next 20 years. By 2010, oil emissions had dropped by around 50 million tons, reaching about 220 million tons