The diagram illustrates and compares the co2 emissions feon energy generation in 5 nations namely US,China,Russia, Japan and India in Gt units in period between 1985 to 2005.
We can infer from the data,that the rate of emission has dramatically increased from 5.1Gt in 1985 to 11.4Gt in 2005 in China placing it on top of charts. Conversely, Japan has maintained a stable ranking with little shift of 0.1Gt over this decade.
Moreover,there is a gradual rise in emission in countries like USA,Russia and India over this 10 year period.
Overall, from the diagram we can establish that all the five nations are contributing towards the co2 emissions. The most significant trend is seen in China followed by India over last 10 year period.Japan is managing to maintain the level of Co2 emissions well under control constantly proving to be a greener nation providing an example to use alternate methods for energy production.