METHANE

METHANE

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JUST LIKE A GLASS BOWL - Radiation from the sun would be reflected out into space, but with more greenhouse gases in the atmosphere some radiated heat is absorbed and re-emitted back to earth just as if we lived in a greenhouse.

By far the biggest contributor to global warming after water vapour, is Carbon Dioxide. We cannot do much about water vapour where around 71% of the Earth's surface is water. But, the rate of evaporation is dependent on temperature, hence the other gases that contribute to the glass-like bubble we live in are very important.

The major greenhouse gases are water vapour, which causes about 36–70% of the greenhouse effect; carbon dioxide (CO2), which causes 9–26%; methane (CH4), which causes 4–9%; nitrous oxide (N2O) that accounts for about 5.6 percent of greenhouse gas emissions from human activities and ozone (O3), which causes 3–7%.

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THE CAUSES IN SECTORS - Transportation and energy for living are the main causes of greenhouse gas build up in the atmosphere as carbon dioxide and nitrous oxides, with agriculture loading us with methane and more nitrous oxides. Hence, we need to revise our eating habits and switch to renewable energy for our cars and industry as quickly as possible.

The greenhouse effect is the process by which absorption and emission of infrared radiation by gases in a planet's atmosphere, warm its lower atmosphere and surface, to include warming the oceans and melting the ice caps.

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