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

Global warming

Extracts from this document...

Introduction

Global Warming - is our weather getting worse? Is climate change taking place? What is Global Warming? Global warming refers to the increase in average ground temperatures on earth. A rise in the amount of "greenhouse gasses" has caused higher temperatures across the planet. Until recent investigation, the green house effect has simply been described as the process by which the atmosphere traps heat keeping the earth at a livable temperature. Although this trapping of heat is essential to our survival, it has begun to escalate to possibly dangerous levels. How does Global Warming Happen? The primary contributors to the greenhouse effect are greenhouse gasses. Greenhouse gasses are vital to our survival. They serve as a sort of blanket to keep the heat in our atmosphere. Without the natural greenhouse effect the temperature of earth would be 15�C lower. But there can be a problem if we get too many greenhouse gases in our atmosphere. When heat enters the earth's atmosphere, it is in the form of short wave radiation. This is the radiation transmitted from the sun through space to us, and it passes easily through our clear atmosphere. As the short wave radiation warms the earth's surface, it is then re-radiated back out from the earth's surface, but now in the form of long wave radiation. ...read more.

Middle

But despite this ban many still misuse CFCs and pollute the environment further. There are also some natural causes such as cattle farming which means breeding cows that give out a lot of methane through egestion. Another natural cause is release of methane gas from arctic tundra and wetlands which also play small part in warming up the planet. All of these causes have resulted in extreme weather which has hit countries all around the world, here are a few examples similar to those mentioned earlier. * November 1999- Cyclone hits Orissa and 20,000 die in floods * August 1999- Heatwave kills 271 people in Texas. * Drought in Indonesia helps forest fires to spread smog over South East Asia. Pollution from Factories. The effects of Global Warming There can be many effects of global warming on the planet some of which I've probably already mentioned when providing evidence for global warming. The most common and devastating effect is extreme weather which includes hurricanes, droughts, snowstorms, heatwaves and other natural phenomenon. Storm strength leading to extreme weather is increasing, and claims millions of lives each year but even more are left homeless. Worldwide, the proportion of hurricanes reaching categories 4 or 5 - with wind speeds above 56 metres per second - has risen from 20% in the 1970s to 35% in the 1990s. ...read more.

Conclusion

By putting energy efficiency, renewable energy, and vehicle technology solutions in place, we can reduce our contribution to global warming while creating a stronger, healthier, and more secure nation. Renewable energy sources like Wind power could help reduce global warming. Statistics and Graphs Here are some stats and graphs to emphasise the importance of global warming. As you can see the the levels of CO2 have risen dramatically from the 19th century up to the 21st century. This is largely because of the Industrial Revolution which happened in the 1800s and also because of pollution from vehicles and factories in the past 100 years. This graph shows the result of the rising CO2 levels and as you can see the general trend of the graph is up. Global temperatures continue to rise briskly and if we don't do something soon it could turn into global catastrophe. Just to highlight the fact that humans need to stop producing greenhouse gases quickly here are some alarming stats: * Carbon dioxide, methane and nitrous oxide have increased by 30, 100 and 15% respectively * Worldwide, sea level has risen roughly 15-20 cm in the last century. Approximately 2-5 cm of the rise has resulted from the melting of mountain glaciers. * About 105 of North America's plant species could be threatened by an increase in temperature as minimal as 3�C. ...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. Free essay

    Notes on Solar power.

    a natural way of getting energy, but others can argue because it is wreaking the landscape, it costs way to much money, and that money could be spent on something else, something more important. Cost - Wind turbines are very expensive, not only to manufacture, but also to put in place e.g.

  2. Plannng an expedition to an extreme environment.Svalbard. Glaciers as an attraction and under threat.

    I think people find it interesting to look at the glacier because they can find answers to their wonders of how landscape form. It is amazing to see the nature is so powerful which can move and change the land.

  1. Global Warming Newspaper

    Al Gore has emphasised this in his film and book, where he has told people what the effects of global warming are. He explained, 'what changed us in the U.S with hurricane Katrina was a feeling that we have entered a period of consequences'.

  2. An Investigation Into Kingston Area Shopping Centres and Their Patterns of Use

    It shows that the larger shopping centres have a wider range of shops and that they have more shops selling high order goods. From the stacked column graph, by showing the data in percentages and using columns of the same size, the different types of shops are easily comparable.

  1. Global warming

    We just have to be smart about it. Some people use less energy by carpooling. For example, four people can ride together in one car instead of driving four cars to work. Save Electricity. Whenever we use electricity; we help put greenhouse gases into the air. By turning off lights, the television, and the computer when you are through with them, you can help a lot.

  2. In this booklet I will be describing global warming, its effects, its causes, my ...

    Permanent deforestation creates an imbalance and can increase the greenhouse effect in a number of ways. Deforestation means cutting down forests - by cutting the trees down, using the wood for fuel, or converting the forested area to farmland or grazing areas - without replacing the lost trees with new ones.

  1. Global Warming

    Without this effect, the Earth's average temperature would be a chilling zero degrees Fahrenheit (F), at which temperature life would be impossible. Global warming, however, represents an instance of the greenhouse effect gone bad. Most scientists blame increasing levels of the technological production of CO2, the deforestation of the planet,

  2. Physical Geography Earth revision notes

    Spits ? a finger of new land of sand and shingle , out into the sea from the coast . Salt marshes On the landward sheltered side of a spit where the water is calm , mudflats and salt marshes form .

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