135 January 1, 2020 121. Alternative energy Alternative energy sources that use the natural power of the wind, waves and sun are too expensive and complicated to replace the coal, oil and gas that we use to power our cities and transport. To what extent do you agree or disagree with this Alternative energy is thought by some to be the answer to our reliance on fossil fuels, as sources of alternative energy are low emitters of CO and area sustainable means of providing electrical power. Critics of 'green energy' contend that current technologies are either too costly or impractical to realistically replace our current energy needs. The advantages of 'green energy' are obvious. There is no need to worry about dwindling supplies of progressively more expensive resources. Solar power will never run out and, once initial costs are paid off, the electricity is basically free. These sources of energy have another major benefit in the shape of their low emissions. Although there are emissions costs in the building of wind turbines or hydroelectric power stations, there is no further air pollution or the risk of environmental contamination. This notion of a perfect world of free and nonpolluting energy does draw criticism, however. It is obvious that solar power won't work at night or that not every country has a coastline, rivers or windy hills. It is also a problem that replacing our current energy supply will entail expensive research and development, which, in turn, involves government cooperation. One last obstacle to the adoption of green energy' is nuclear power. Many countries seethe huge energy production from this power source as a more practical solution than messing around with the wind and waves. In conclusion, there is little doubt that we will soon need to wean ourselves off fossil fuels and onto an alternative fuel source. The only real question is whether we risk the costs and delays of green energy or choose the productive, but potentially dangerous, nuclear option.
