bar chart of CO2 emissions and exports

In 1990 the US emitted 2.5 times as much CO2 as China. The US had is predicted to have a slight increase in CO2 emissions, from below 5Gt in 1990 to over 6Gt in 2018. (haha 2018 is future, so you cannot use past tense, and it is not a fact) In By 2018, China will catch have caught up with the US in CO2 emissions. The number amount of CO2 emissions from China rose slowly with occasional fluctuations, peaking at around 3.4 Gt in 1997 and declined to 3Gt in 2000. After an insignificant ups and downs, the emissions from China will rocket to about 6.1 Gt in 2018.
China is overtaking the US in the share of world exports. China’s proportion of the world total grew sharply, finishing at under 10% during the whole period. In 1990, the proportion of world exports from the US made up 9.5%, five percent points higher than the figure from China. In the US the share went up a little initially then is predicted to decrease dramatically during the 1990-2018 period in the US.