• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

The development of alternative energy sources is a possible response to future energy demands. Assess the possible costs and benefits of this approach

Extracts from this document...

Introduction

´╗┐Anjana Magendran 13C The development of alternative energy sources is a possible response to future energy demands. Asses the possible costs and benefits of this approach Alternative energy sources are renewable sources of energy which include wind power, tidal energy and nuclear power. Energy demands are extremely likely to increase in the future due to rapid global population growth, the world population now nearly seven billion may rise to 16 billion by 2100 and predicted by the UN. NIC are industrialising at large demanding high energy needs, meanwhile its population?s quality of life and standard of living increase as better paid and well educated and skilled jobs become available. Bangalore, India; is a hub for IT specialist jobs where people are able to get high paid jobs, this allows them to consume high energy consumption products such as cars, washing machines. They have the money to travel long haul destinations, tourist numbers from China have staggered over the last couple of years. Governments need to respond to this demand by finding alternative sources to fossil fuels and to have more of an energy mix. In the UK there to meet future energy demands by increasing our wind energy and developing tidal barrages to harness tidal energy in River Estuaries. The estuary of the River Severn in south-west Britain is notable for its great tidal range of almost 15 metres. ...read more.

Middle

It could lead to physical changes at the estuary because of the reduced tidal range, as it affects the landscape morphology and the sedimentary processes. Salt marshes are estimated to be reduced by 40% and mudflats by 5%; transitional grassland will increase by 6%. The reduced tidal range and tidal currents upstream of the barrage would create safer conditions for sailing. This could lead to the developments of marinas, employment and housing to service the sailing sector. On the other hand, Bristol has plans for a new dock to handle the next generation of cargo ship of up to 130,000 tonnes and 16m draught. The reduced tidal range may pose problems for large vessels entering the port of Bristol itself; pumping might be required to raise vessels to the height of the water in the enclosed docks; a slow and expensive process. The barrage could be very hazardous to marine life in the sea hence environmentally unfriendly and unsustainable as it could affect breeding patterns of birds; there are five bird species of international importance and the barrage could affect them immensely. Marine life, such as fishes; salmon can be killed in the sluices and turbines, and discouraged from migrating by the presence of the barrage. The UK environmental Agency has predicted high mortality rates for salmon, sea trout and shad. ...read more.

Conclusion

Suitable sites for wind turbines are often in remote locations, distant from areas of demand for electricity. Thus there is an additional expense in connecting to the National Grid so the electricity can be distributed to the appropriate areas, and obtrusive pylons and power lines cross the countryside. Wind energy can bring wider economic benefits for a country. For example, there are an increasing number of companies around the UK involved in manufacturing turbine components and installing, operating and maintaining. Decommissioning of wind farms is straight forward and leaves no toxic waste residues or environmental damage; however wind turbines kill birds, especially at higher rotation speeds when the turbine blades can become invisible. In conclusion, the world cannot carry on as business as usual, the risks, impacts and danger is very high and could lead to the destruction of nations as they fight over the last resources of fossil fuel or are endangered by the impact of global warming. Thus an alternative energy source needs to acquired and put into use so that the world can function as normal without economic decline and standards of living falling, as well as to be able to look forward to a sustainable future, governments and nations need to look into diversifying their energy sources, a mix of renewable energy sources will help the country become independent of fossil fuels and can lead to a better sustainable future for the generations to come. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Environmental Management section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Environmental Management essays

  1. The Development of the Travel and Tourism Industry After World War II

    high standards of service including car parks and park and ride schemes. Also travel information services * Land/Rail-There are now many train services that take you all around the country. There are now many privately owned companies virgin, GNER, also included in this are Eurostar, which takes passengers through the

  2. Free essay

    What are the energy problems the USA is facing, and why its energy insecurity ...

    This is linked to the terrorist attack on the world trade centre on the 11th September 2001 this created energy problems for the USA due to its high dependence on imports from the Middle East its main energy source.

  1. Assess the role that nuclear power might play in the future energy security of ...

    All of the above factors are underpinned by the rapidly depleting reserves of fossil fuels. Current demands for oil are predicted to empty reserves in only 40 years, and only 65 years for gas - only contributing further to energy insecurity and demand for remaining reserves.

  2. Ethics of Wind Farms Erected at the Scarborough Bluffs

    According to Jim Prall, who is an employee at the University of Toronto: "many university graduates that he knows have to leave Canada to find work in the renewable energy sector."3 If the Scarborough Bluffs invests in a wind farm it will ultimately attract research academics and professionals to work

  1. It has been suggested that nuclear and/or wind power will fill the gap left ...

    Wind Wind power produces very little emissions similar to nuclear but it can't produce anyway near the energy which nuclear plants are able to. However, there is no safety risks involved with wind turbines and the only problems with them are the noise and eye pollution they cause.

  2. Climate Change, sea level rises and engineering Hull for the future. In areas ...

    with the introduction of the Human race there has been a rapid change in the warming of the planet that wouldn't have naturally occurred and another name for this is global warming and even though scientists have thought to have found proof that its being brought about due to pollution

  1. I am researching about four organisations energy policies which are: McDonalds, Tescos, EDF Energy ...

    at in-store bakeries and staff restaurants saving 15,777 MWh of electricity worth £710,000 last year. We are working with the Carbon Trust to produce an energy efficiency training video for staff.” Taken from: http://www.enviro-news.com/policies/tesco.html - No Author Accessed on 17/10/2011 This shows that Tesco’s policy indicates how energy savings have been achieved.

  2. Alternative Energy. One answer to global warming is to replace and retrofit current ...

    water tunnel and a horizontal tailrace taking water away to the lower outlet waterway. Advantages of alternative sources of energy Renewable energy generation will have mainly positive, long-term environmental effects as it reduces the need for power generation based on fossil fuels, thereby reducing Greenhouse Gas (GHG)

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work