Causes

Global warming is a big issue that the world is facing. Now I am going to describe some important causes in detail.

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  Smoke from factories and C02 form cars will spread in the air and polluted it.
  


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  When the volcanoes are exploded heat will increase the temperature.
  


• Burning waste will produce dangerous gases.
  


• Forest fires will burn a big number of trees. It will produce heat, harm gases and number of trees will reduce.
  


• Rich countries only consider the economy and focus in building factories to make profit.
  


• Burning fossil fuels pollute the atmosphere and produce heat.
  


• There are many airplanes are used so they produce C02.
  


• Millions of people smoke cigarette.
  


• Deforestation, cutting trees is big problem. Trees produce oxygen which is important to humans and animals.


• Large hole in the ozone layer is dangerous because of the ultra-violet rays.

Specific cause

Almost all people know about global warming and its causes. However, some people think that global warming is caused only from car C02 and factories. But actually there are many sources that cause global warming such as deforestation. About 25 – 30 percent of greenhouse gases are realized in the air by deforestation. Trees are 50% of carbon; so when they cut or burn it turn to C02. About 13 million hectares of forests worldwide are lost every year. Developed countries which have forests are cutting trees irresponsibly. Deforestation remains high Africa, Latin America and Southeast Asia. This will cause many dangerous effects in the future because C02 will keep increasing year by year.