Figure 4. World primary energy consumption by sources

From

A Comparative Analysis on China’s Energy Issues and CO2 Emissions in Global Perspectives

Md Sahadat Hossain, Baizhan Li, Sanjib Chakraborty, Md Rubayet Hossain, Md Toufiqur Rahman

Sustainable Energy. 2015, 3(1), 1-8 doi:10.12691/rse-3-1-1