Presented by: Neha SinghClass: X ‘A’

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WHAT IS GLOBAL WARMING? Global warming is the rise in average

temperature of the Earth’s atmosphere and oceans. The Earth’s mean temperature has increased by about 0.8 degree Celsius since the late 19th century with about two-third of the increase occurring after 1980.

According to scientists it is primarily caused by increasing concentrations of greenhouse gases produced by human activities such as the burning of fossil fuels and deforestation.

ATMOSPHERIC GASES

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Nitrogen (N2)

Oxygen (O2)

Carbon Dioxide (CO2)Methane (CH4)

Non-GreenhouseGases99%

GreenhouseGases

1%

CAUSES OF GLOBAL WARMING

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EFFECTS OF GLOBAL WARMING

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Rise in temperature

Melting of glaciers & sea ice

Loss of habitat

Species affected

Amount & Pattern of precipitation

Floods & drought

Rise in sea level

Low altitude coastal places will go under water

HOW TO STOP IT?

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Reduce emission of carbon dioxide

Solar Power Wind Power Fuel-Efficiency

SIMPLE THINGS TO DO

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Turn off your computer or the TV when you are not using it.

Keep rooms cool by closing the blinds, shades or curtains. Take shorter showers. Heating water uses energy.

Turn off the lights when you leave a room.

Use compact fluorescent bulbs.

TAKE HOME MESSAGE….

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Each of us must take steps to slow down global warming.

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THANK YOU