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

Global Warming, the problem, the potential impacts and alternatives to fossil fuels.

Extracts from this document...

Introduction

Category 1 - Knowledge (10 points) 1. Explain the term global warming. Global Warming is a process of when the earth heats up and raises temperatures all over the world. Global Warming has many consequences that come with the issue. The definition of global warming is the raise in average temperatures which has happened throughout history. Scientists suggest that we have caused the problem and that we need to fix it so that it temperatures rise enough to affect our food chain. The current temperatures are already killing plants and animals and rising sea levels all over the world. Global warming has been a natural process throughout history but now it is said to be caused by excessive use of fossil fuels and deforestation. The image shows how the infrared radiation penetrating through to the earth there fore heating it up, some is blocked by clouds. The radiation is bouncing back into space and hitting the greenhouse gases therefore trapping the heat and making the earth warmer. 7. What will cause sea levels to rise? As world temperatures rise so do the sea levels, rising sea levels can cause a great deal of problems. Global warming is a major factor in sea levels increasing; this is because of the melting of polar ice caps. The polar ice caps contain 2.4% of the world's surface water; if this all melts the consequences are tremendous. The consequences of the polar ice caps melting including; mass population evacuation, the inundation of water in low lying areas and will affect the food quality and sustainability. ...read more.

Middle

Ocean power or wave energy uses the movement of the waves in rough conditions and areas in the sea to absorb the movement through large machines. This has been recently tested in Portugal where the seas are known to be calm; the energy off these machines goes into the Portugal power grid. Solar energy is made by extracting energy from the sun by heating up water from the infrared radiation coming from the suns rays. Using the sun for our energy requirements is a very good idea and takes from the sun what is free. Hydroelectricity is an extremely clean source for our energy requirements. Hydroelectricity is made by a making a dam and from the top of the dam the water is pushed through a gap in the dam wall which spins a turbine. From there the energy is goes through a generator and then the energy is transferred from there into the power grid. For our cars we can use ethanol it is a biofuel and is derived from sugar cane or corn. Using this in our cars is not as bad as using Crude Oil as it emits substantially less carbon dioxide than oil. The downsides to these energy alternatives is that most of them are very expensive to set up, some might take up too much space. The positives can speak them selves and they include; Low/No Pollution, benefits environment and sustainable for the future. Category 3 - Applying your understanding (15 points) ...read more.

Conclusion

This graph goes against what the others show although this might not be as accurate as the others. All of these readings, findings and reports have been compiled together and gives us the graph. Category 5 - Being creative with your knowledge (25 points) 3. Write a letter to the federal Government outlining your concerns for the future of our country. Category 6 - Weighing up the evidence: Critical thinking (30 points) 1. If earth has warmed and cooled throughout history, what makes scientists think that humans are causing global warming now? Throughout history the earth has gone through many stages and periods to end up where it is today. The changes in temperature of those years are very important as they can affect the temperatures in our world today. Scientists believe that the human race is causing climate change because of the rapid increase in temperatures in the mid to early 1900's. The temperatures quickly crept up as we were using more fossil fuels and the introduction of harsh chemicals to deplete the ozone layer. The ozone layer blocks out harsh UV rays which can increase land temperature dramatically. With the greenhouse effect growing the world had increased temperatures which had not been expected at this time. Scientists think global warming is happening now as the rapid increase is on par with increased use of fossil fuels and the pollution of the atmosphere. Climate change is a very realistic event in the 21st century and it effects all of us so we need to change that by reversing the process and reducing the use of fossil fuels and other air pollutants. ...read more.

The above preview is unformatted text

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

  1. Marked by a teacher

    The Aral Sea

    5 star(s)

    (rainforests, N/A) However due to the grdual destruction of the ecosystem and the consequent loss of flowers, plants, trees and even animals has affected tourism. The forest no longer receives the same popularity as a tourist site. Hydroelectric power is another cause of the biodiversity loss due to deforestation in tropical rainforests.

  2. Case study on Aral Sea

    As you can see in the table that as year passed area of irrigated land increased, until year 2000 when the government started realizing the consequences!!

  1. HIV AIDS -Impacts and Mitigation

    Loss of parents also burdens children as they now have to care & earn for themselves.

  2. Foreign Talent-Dilemma in Singapore. as we shall explain, illustrate and seek to convince in ...

    position us centrally in the areas where most of our business allows us to be closer to our customers and serve them more effectively. Singapore is a dynamic, international city with great infrastructure, talented people and high living standards". 29.

  1. Free essay

    An investigation into the underlying factors affecting infiltration rates and their impacts in a ...

    However, Brussels is a city that is also notorious for having a significant amount of precipitation - it has an average annual precipitation which varies from 510 mm to 760 mm, relatively higher than average. The process of infiltration itself is dependant on infiltration rate, or the maximum rate at which the water enters the soil under specified conditions.

  2. Is the introduction of foreign talent in Singapore beneficial to Singaporeans?

    will pay 50 per cent more than local students, compared to just 10 per cent more previously - it still rankles with many parents that foreigners pay only about 50 per cent of the full cost of their university education here.

  1. Fieldwork Urban Heat Islands

    With this map, we can understand the distances between the Fieldwork Places: - "Parque da Luz" to "Esta��o da Luz" is 193,39 meters. - "Parque da Luz" to "Esta��o J�lio Prestes" is 772,93 meters. - "Esta��o da Luz" to "Esta��o J�lio Prestes" is 602,82 meters.

  2. What are the effects of global warming and initiatives taken by Wales and Iceland ...

    How does global warming occur? Well when people burn fossil fuels, or cut down trees, carbon dioxide, or other greenhouse gases contribute to this effect, making the planet warm up. Our atmosphere has remained undisturbed for millenniums, and in the last century, all of a sudden carbon dioxide in particular has dramatically increased.

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