Who is responsible for climate change?

Less people in US believe “Climate Change” is real

Rich countries are responsible for 72%of total greenhouse gas emissions. US responsible for high emission (20.1 CO2 emissions per capita per year in tones) is still not signed the Kyoto protocol, despite various campaigns including US former vice president AlGore campaign more people in US not believe Climate Change is real and awareness graph in US is clearly in reducing mode.
By Zaki Ahmad