IGNOU BEY 7 2026 - Discuss how different energy sources (fossil, renewabl

Question

Discuss how different energy sources (fossil, renewable, and nuclear) contribute to the global power generation mix and their environmental impacts.

06 Mar 2026

Answer :

Word Count : 466

The global power generation mix comprises a variety of energy sources, each contributing differently to electricity supply and carrying distinct environmental implications. Fossil fuels, including coal, oil, and natural gas, have historically been the dominant sources of power generation. Coal-fired power plants, for example, are widely used due to their reliability and abundant reserves, particularly in countries like China and India. Natural gas plants offer greater flexibility and lower carbon dioxide emissions than coal, while oil is generally reserved for peak demand or areas without access to other fuels. Despite their widespread use, fossil fuel-based generation is associated with significant environmental impacts, including high greenhouse gas emissions, air pollution, acid rain, and habitat degradation. The combustion of these fuels releases carbon dioxide, nitrogen oxides, sulfur dioxide, and particulate matter, contributing

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