One of the first used forms of alternative was wind energy. Many countries have developed wind farms, both off shore and mainland wind farms. Turbines are turned by wind, creating a viable renewable energy source.The problem with wind energy is that turbines can’t be located near housing districts because of the noise they create, although with further research and investment technologies associated with wind energy and wind turbines will undoubtedly keep improving.
But the technology with the Coal is improving.Is the coal clean?...but somebody are opposing for this and someone says yes..There are so many plants under construction with the new technology like Clean Coal.

In the past coal mining has produced significant acid mine drainage. Sulphuric acid derived from coal mine wastes has been allowed to pollute rivers and streams, and has meant that the environmental effects of coal mining have spread out of the mining region.

Spontaneous combustion of mine wastes has increased acid mine drainage, whilst at the same time producing noxious gaseous emissions. Good mining methods coupled with efficient mine land rehabilitation will significantly reduce such cases of pollution from future mining operations.

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