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

green house

Extracts from this document...

Introduction

´╗┐Green House Effect. Greenhouse Effect plays a huge role in helping warm the earth?s atmosphere. The atmosphere is transparent to incoming ultra violet rays, which is absorbed by the earth?s surface. The sun warms the earth surface. As heat energy from the sun passes through the atmosphere, almost three quarters of the energy gets absorbed into the earth. Some part of this energy is reflected back into the atmosphere from the land and ocean surface. This reflected heat energy will be reflected back into space. The rest actually remains behind to heat the earth. In order to establish a balance, the earth must radiate some energy back into the atmosphere. As the earth is much cooler than the sun, it does not emit energy as visible light. ...read more.

Middle

Just as the glass of the greenhouse prevents the radiation of excess energy, this ?gas blanket? absorbs some of the energy emitted by the earth and keeps temperature levels intact. This effect was first recognized by a French scientist, Jean-Baptiste Fourier, who pointed out the similarly in what happens in the atmosphere and in a greenhouse. Hence he terms the ?greenhouse effect.? Rise in global temperatures causes many climatic changes also, but the most drastic change will be the increase in sea-level. Already, the rise in global temperatures have resulted in cracks in the Antarctic ice shelf. Melting of even fraction of the volume of polar ice can result in flooding of many low lying areas around the earth. Other climate changes include floods, droughts, storms and exceptionally warm summers. ...read more.

Conclusion

These greenhouse gases are completely human-caused. They harm stratospheric ozone, and so are not as directly responsible for global warming as carbon dioxide is. The question of reducing their presence in the stratosphere is being taken care of in another global convention, the Montreal Protocol. These gases are particularly effective in absorbing long wave radiation from the earth?s surface and preventing heat from escaping. Although the views and opinions of people across the world vary on issues relating to the cause of global warming and its possible impacts, there is a common understanding that it is a cause for major global concern and must be addressed immediately. Reference: Physics Year 11 and 12 Heinemann Text book, National Geography 1999 edition, pg.95 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Physical Geography 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 GCSE Physical Geography essays

  1. Paxton House Roleplay

    Doe's that sound good? And how about right before you leave, you could take a visit to the gift shop, and get something to remember your special day here by. Right then, just before we go into the house, I would just like to talk abit about Paxton house as a business.

  2. Jean Baptiste Story.

    He could smell ascent that was unique. The sergeant of the barracks had just walked through the private gardens. So Jean ran rapidly into the hedges that had a scent of fresh basil and mint. The time flew by from eight o'clock to ten o'clock and from where he was standing he could just see the canopy

  1. The Great Green Debate

    You should add more insulation, block up some annoying drafts, and be aware that each hour a boiler is fired it will have released 5kg of CO2. Your house does not need to be a direct replica of the heat in the Caribbean everyday, so lower your thermostat.

  2. Edmonton Green

    those believe that humans are primarily responsible for this; there is clear evidence of changes in the composition of the greenhouse gases in the lower atmosphere. Ice core samples show that both carbon dioxide and methane levels are higher than at any time in the past 160,000 years.

  1. Shops and services Affecting House Prices

    is much better than that of Northwood. Watford also has a shopping centre called The Harlequin, as Harrow has St.Georges and St.Anns Hence the population in the area is much higher. This means high order shops/services requiring large threshold populations (comparison, nationwide stores) can acquire good business in the area.

  2. Chobham Common has been identified as a valuable ecological/environmental resource this essay looks at ...

    Data Collection Primary Data The first method of data collection I used was a questionnaire. I chose to use this to find out about general public land use of the Common, the sphere of influence and the activities for which the Common was used.

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