The line chart shows us the number in metric tons of carbon dioxide emissions for the top four contributing countries from 1990 to 2020.
Overall, the highest quantity of emissions belongs to China and the lowest to Russia. During the timeline given, the United States had approximately the same emissions contribution. While India had a slight increase of produced emissions, Russia had the opposite situation as its data decreased. However, China had the most dramatic increase among all countries which are presented.
According to the line chart, from 1990 to 2000 China had less than 3000 carbon dioxide emissions during those 10 years, but from 2000 to 2015 emissions produced by that country dramatically increased from 3000 to 10,000 metric tons per year. Meanwhile, the United States had a slight increase from 1990 to 2000, then indicators stayed the same and production of carbon emissions was 6000 per year from 2000 to 2005. After that, the US reduced production of emissions to around 5000 per year by 2020. During the same period, India stably increased its quantity of carbon dioxide emissions. Emissions produced by India for 30 years (from 1990 to 2020) grew from approximately 1000 at the beginning of the timeline to more than 2000 at the end. On the other hand, Russia has increased production of emissions from around 2000 tons in 1990 to nearly 1900 metric tons per year in 2020.