The consumption of energy has a major environmental impact, and it even affects climate change, air quality, and water resources. Also, depending on the type of energy used, energy consumption contributes in varying degrees to environmental impacts. A clear understanding of the nexus between energy production and environmental degradation is therefore a prerequisite for building a sustainable future. Hence, this magazine addresses issues of greenhouse gas emissions by energy type, the effects on the environment, and the policy measures to combat these effects.
GHG emissions are the primary culprit behind the changes in climate, and the energy sector happens to be one of its biggest emitters. The type of energy directly determines the amount of GHGs emitted into the atmosphere.
Coal, oil, and natural gases: these constitute the main GHG emitters. The synthesis of CO2, CH4, and N2O in large quantities is caused by combustion of these fossil fuels for the generation of electricity, heating, and transportation. Coal stands at the forefront in the amount of CO2 it emits per unit of energy created. Despite being comparatively cleaner, oil and natural gas still add its share to the global carbon footprint.
Renewables-in-wind, solar, hydro, biomass, among others, account for almost negligible direct emissions of greenhouse gases during their operation. The manufacturing, installation, and up-keep of systems like solar panels and wind turbines do, however, contribute to a certain amount of greenhouse gas emissions. Biomass, being a renewable energy source under certain circumstances, would still emit if not sourced or managed effectively.
Nuclear power, being an electricity generator, has no greenhouse gas emissions during its operation. Environmental consequences do, however, accompany the stages of uranium extraction, nuclear plant construction, and radioactive waste management. In any case, nuclear energy is considered a low-emission alternative to fossil fuels.
Energy use affects the environment, with particular regard to climate change, air quality, and water resources:
Governments have rolled out several policies across the globe that work to mitigate the impacts of energy consumption on the environment:
Environmental effects from energy consumption include climate change, air quality, and water resources. Moving away from fossil fuels and toward renewable energy can abate these environmental concerns and pave the road to a truly sustainable future. Governmental policies such as clean energy incentives, carbon pricing, and energy efficiency standards are the critical force driving this transition. As innovation continues and global cooperation grows, we can lessen the environmental impact of energy and bring about a more sustainable world.