The pie charts below show the global emissions in 1990 and 2011 in different parts of the world. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The pie charts depict the proportion of worldwide emissions in 1990 and 2011 among four countries and the rest of the regions. The first glance reveals that China was the biggest among other countries producing radiation in 1990,

whereas

the US surpassed other nations in 2011. In 1990, India and

Brazil

contributed low percentages,

while

discharge by

Brazil

saw massive growth in 2011. In 1990, China was the leader in global radiation with 22%. Following that, the US had 17% of the share.

Brazil

and India contributed less than 10% of total radiation, with each having a share of 8% and 6%, respectively. China's percentage registered a marginal decline of 4% in 2011.

On the other hand

, the US saw enormous growth and closed at a quarter of the world's

overall

emissions. A similar trend was in

Brazil

, where the proportion climbed to 20% in 2011. In India, there was not a substantial difference in discharge between both years.

Lastly

, the rest of the world produced 47% discharges in 1990, but that rate declined significantly to 30% in 2011.