Question

The CO₂ has crucial role in global warming. Explain.

Answer 1

To reach this target the annual global CO2 emissions have to be reduced from about 28 Gigatons in 2006 to 20 Gigatons of CO2 by the year 2050 and to 10 Gigatons of CO2 by the year 2100 according to IPCC. At the first glance, this does not look like a major reduction. However one should keep in mind that the world population will grow from 6.4 billion people in 2007 to about 9.5 billion people in 2050. At the same time more and more developing countries will progress their industrialisation and as a result they will want to copy our western life style causing high CO2 emissions.

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Answer 2

Dear Student,

◆ Global warming -

• Global warming is phenomenon of rise in average temprature of earths atmosphere.
• It is the effect of increasing air pollution and release of greenhouse gases

● Role of carbon dioxide in global warming -

• Carbon dioxide is released from automobiles, various industries, etc.
• It remains in atmosphere for as amny as a 100-200 years.
• Increase concentration of CO2 in air traps heat radiation leading to hotness in environment.
• This leads to increase in average temperature of earths atmosphere.
• CO2 plays major role (20 %) in global warming.

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