• 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.

    Wind turbines have significant economies of scale. Smaller farm or residential scale turbines cost less overall, but are more expensive per kilowatt of energy producing capacity. Wind turbines under 100 kilowatts cost, Roughly $3,000 to $5,000 per kilowatt of capacity.

  2. An Essay Upon Global Warming

    The water would passes directly into the oceans that encircle the ice sheets. This happens every year naturally, but if global warming were occurring, the amount of ice that melts each year would increase to the point that less water freezes during the winter than melts during the summer.

  1. Cliff erosion in East Sussex - the processes, problems and solutions.

    Also there is the problem that if the cliff is just left to retreat, then people will have to move out of their homes. They will not be able to sell them and they will get no compensation, this will particular effect elderly people who might not have enough money

  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

    A major contributor to global warming is places such as power plants which burn fossil fuels for electricity purposes. Also, about twenty percent of the carbon dioxide emitted comes from vehicles which burn gasoline. However, buildings represent a larger source of global warming pollution than cars.

  2. 10 Mad Ways to Save the Planet

    This would mean sending trillions of ultra-thin lenses into space to deflect the sun's rays. Arizona University astronomer Roger Angel suggests using electro-magnetically powered spacecraft (a concept NASA is already exploring) to blast the silicon lenses into orbit. Once in place, they would create a 100,000 square-mile sunshade, reducing the sun's rays by about two per cent.

  1. Physical Geography Earth revision notes

    They are long in relation to their height . They break gently on the beach so that the swash up the beach is stronger than the backwash carrying them away . 6 ? 9 waves per minute . They carry large amounts of sand and shingle that is deposited and builds up on the beach Destructive waves The backwash

  2. Global Warming: Causes, Effects and Remedies

    It would have far-reaching socio-economic impact. In Indian context, the impact of global warming is a matter of grave concern. As is well known, India is mainly an agricultural country and agriculture here is gamble of the monsoon, e.g. largely depending on rainfall. Though it is to affect the whole country, the worst likely impact would

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