• 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...


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.


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.


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?

    One glance at these graphs and a person could easily deduce that man and industrialization has caused global warming. Many seem to forget that the last ice age was over 100,000 years ago, so looking at the last 120 years for temperature change seems inadequate.

  2. Describe and explain the long-term effects of large-scale deforestation on the earth's atmosphere.

    Predicting the amount of warming is accomplished by computer modelling. Computer models suggest that a doubling of the concentration of the main greenhouse gas, carbon dioxide, may raise the average global temperature between 1 and 3 degrees Celsius. However, the numeric equations of computer models do not accurately simulate the effects of a number of possible negative feedbacks.

  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. "The Impact of Deforestation on Global Warming"

    Earth has an atmosphere which contains a variety of gases, all in a delicate balance, to ensure life on Earth. One of these gases in Earth's atmosphere is carbon dioxide; a gas which helps moderate heat loss to outer space.

  1. Noble Gases

    ionisation energy decreases on descending the Group, as the valence shell becomes further away from the nucleus and electrons easier to remove. The first ionisation energy of xenon is comparable with that of bromine, which explains why xenon forms compounds with oxygen and fluorine relatively easily.

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

    Trees absorb carbon dioxide and produce oxygen. When they are removed, less carbon dioxide is absorbed, more is present in the atmosphere, and the greenhouse effect worsens. About 30 gases produced by human activity have been identified as contributing to the greenhouse effect.

  2. In the beginning God created the Heavens and the Earth.

    (Gen 1:21-22 KJV) "And God created great whales, and every living creature that moveth, which the waters brought forth abundantly, after their kind, and every winged fowl after his kind: and God saw that it was good. {22}And God blessed them, saying, Be fruitful, and multiply, and fill the waters in the seas, and let fowl multiply in the earth."

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