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Producing, transporting, or consuming energy all have an environmental impact. [3] Energy has been harnessed by human beings for millennia. Initially it was with the use of fire for light, heat, cooking and for safety, and its use can be traced back at least 1.9 million years. [4] In recent years there has been a trend towards the increased ...
All forms of electricity generation have some form of environmental impact, [1] but coal-fired power is the dirtiest. [2] [3] [4] This page is organized by energy source and includes impacts such as water usage, emissions, local pollution, and wildlife displacement.
Greenhouse gas emissions are one of the environmental impacts of electricity generation. Measurement of life-cycle greenhouse gas emissions involves calculating the global warming potential (GWP) of energy sources through life-cycle assessment. These are usually sources of only electrical energy but sometimes sources of heat are evaluated. [1]
Energy sources with low environmental impact are sometimes called green energy or clean energy. The economic dimension of sustainability covers economic development, efficient use of energy, and energy security to ensure that each country has constant access to sufficient energy.
Greenhouse gas emissions are one of the environmental impacts of electricity generation. Measurement of life-cycle greenhouse gas emissions involves calculating the global warming potential (GWP) of energy sources through life-cycle assessment. These are usually sources of only electrical energy but sometimes sources of heat are evaluated. [196]
This is lower than that of many renewable sources, including the environmental impact caused by biomass use and the manufacture of photovoltaic solar panels, and was over thirty times lower than coal's impact of €0.06/kWh, or 6 cents/kWh. However, wind power's impact was €0.0009/kWh, just under half the price of nuclear power. [72]
Alternatives to petroleum can include using other “cleaner” energy sources such as renewable energy, nuclear power, natural gas or biodiesel. Some of the alternatives have their strengths and limitations that might impact on the possibility of adopting them in the future. Using corn-based ethanol might be an alternative to using petroleum ...
Renewable energy can contribute to "social and economic development, energy access, secure energy supply, climate change mitigation, and the reduction of negative environmental and health impacts". Under favourable circumstances, cost savings in comparison to non-renewable energy use exist. [2]