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

How can we be sure that global warming is happening?

Extracts from this document...

Introduction

Global warming

How can we be sure that global warming is happening?

Global warming is the heating of the Earth as the Sun’s heat and energy is reflected back into our atmosphere.

This energy coming from the sun powers the Earth’s weather and climate. The Sun heats the Earth and so the Earth then radiates heat back. This lost energy is sometimes stopped by the natural gases that surround our Earth. We need some of this heat, but not all of it; this is the problem. As the world’s technology is growing, we are giving off these ‘greenhouse gases.’ These gases have now produced another layer around the Earth and are in turn, reflecting back more heat and energy. This is a major concern.

Humans have altered the chemical composition of the atmosphere through the build up of greenhouse gases. These gases are mainly:

  • Carbon Dioxide
  • Methane
  • Nitrous Oxide and
  • CFC’s

There has been a 1°c rise in the past century in the Earth’s temperature, especially in the last 2 decades.

...read more.

Middle

But, on the other hand, global warming is essential for all our survival. The reflected waves keep our Earth warmed up. If we didn’t have this radiation then nothing would be able to live on the Earth, as we know it. The Earth warming up slightly is certainly not a bad thing, it is actually quite positive. If the temperature fluctuates it could mean that more tropical crops and plants could be grown in other countries meaning that the supplied products would increase in numbers. This would also mean less money spent on shipping them in exports and imports to other countries.

Some scientists also feel that this is just another warming age. Like the ice age, this could come and go in its own time, and the temperatures will return to normal, like in this graph showing the ice age, and another warming age.

What are the possible causes of global warming and who is to blame for this?

We on Earth get all of our energy from the Sun.

...read more.

Conclusion

What will be the effects of Global Warming?

Global Warming has its good and bad consequences.

Scientists say that the temperature will rise by 0.2ºc each decade and although this seems hardly anything, it can greatly affect the balance that I mentioned earlier. This increase could mean that there would be more rain, mainly in the north and the polar ice caps melting. This could flood many low-lying places and islands.

How can we reduce the effects of Global Warming?

Here is a list of things that, if followed, will save the country: -

  • Reduce the use of fossil fuels and try and use alternative sources of energy.
  • Cut down the use of cars and use public transport to its fullest.
  • Energy pricing – use taxes to price fuels high so that people don’t use it as much.
  • Control deforestation – also keep up planting trees to absorb the carbon in the atmosphere.

If the nation, and on a larger scale, the world, could take note of these things then maybe we can start to stop global warming and the terror that we could face if we carry on like we are.

...read more.

This student written piece of work is one of many that can be found in our GCSE The Earth and Beyond 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 The Earth and Beyond essays

  1. Peer reviewed

    Global Warming - Is it man Made?

    The sand is at times highly degraded, so that often sand bags to use, to stop the "waves" a little bit. http://www.telegraph.co.uk/earth/environment/climatechange/8586961/Sea-levels-rising-at-fastest-rate-in-2000-years.html http://www.globaltrees.co.uk/dev/UserFiles/Image/sealevel_resized.jpg 2001: St. Mark's Square attracts the biggest crowds in one of the world's most popular tourist cities, Venice.

  2. "The Impact of Deforestation on Global Warming"

    This may happen more rapidly than the species that depend upon them can adapt. A decline in biodiversity and in the goods and services provided by most ecosystems is a likely result. A lengthening of the growing season is predicted for some high latitude regions.

  1. Space - Should the costing be spent?

    For example since 1970 forests have been reduced by twelve percent. This proves that if space exploration improves and is funded, we can get numerous materials from out of space. For example, on the Moon there seems to be a great deal of silicon and metals such as iron, aluminium and titanium.

  2. Global Warming Our planet's atmosphere traps energy just like a greenhouse. Energy from the ...

    Up to a point, the greenhouse effect is a natural process, and naturally occuring carbon dioxide is not dangerous. Without greenhouse gases, the average temperature of the Earth would be -19C , in other words, too cold for us to live.

  1. Would Using alternative sources or energy dramatically reduce the need to burn fossil fuels ...

    The Earth's defence mechanism against pollutants are called 'trace radicals;' gas molecules which interact with greenhouse gases, making them harmless. There are limited quantities of these trace radicals in the atmosphere, and as more greenhouse gases are released more trace radicals are used up.

  2. Global warming

    The Earth's atmosphere, a thin blanket of gases, protects the planet from the harshest of the sun's ultraviolet radiation. The atmosphere, by trapping the Earth's warmth, keeps rivers and oceans from freezing.

  1. Tropical Deforestation.

    In areas of the world this has been happening for hundreds of years already, for example the Indians of Santa Rosa practice a form of agriculture, which resembles shifting cultivation, known as the milpa system. This is labour intensive but allows the population to grow crops with out using up too many of the natural resources.

  2. Sustaining life on Mars - the survival of the human race.

    These plants would produce enough oxygen over time to sustain life. Many processes working together in order to form a atmosphere and oxygen would get the job done much faster than just one of these working alone, which can take hundreds of years therefore more processes will be used to give Mars the necessary water to sustain life.

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