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How can we be sure that global warming is happening?

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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.

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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.

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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.

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