Global warming due to the greenhouse effect mostly stems from increased fossil-fuel consumption, and the resultant CO2 emissions. This is a matter of global concern, making it difficult for India to follow the fossil fuel-heavy development path adopted by the developed world. Historically, industrialization and development have been driven by the power sector. Adopting a new development model will be a challenge for India. The transition to fossil-free resources for power generation will have a significant impact on our emissions — especially with the rise in electricity demand due to economic progress and quality of life. More than 50 billion tons of CO2 equivalent was emitted in 2016 globally. China was responsible for around 24% of the total emissions, while the United States and India accounted for 12% and 6% respectively.