Golbal Warming 1.pptx

GLOBAL WARMING DONE BY JEFFERSON GRAHAM J UR16CE085

Contents:  What is Global Warming? Causes of Global Warming Effects of Global Warming Global Warming Statistics Green House Effects Ozone Layer Depletion Future Pedictions

Global Warming is the increase of Earth's average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil fuels or from deforestation, which trap heat that would otherwise escape from Earth.

The true cause of global warming is our thoughtless attitude to Nature.

 Due to the warming of oceans, sea level will rise. Glacier ice will also melt, causing further rise in sea level. As a result in the 21st century sea level will rise from 9 to 88 cm. Such a rise will submerge many parts of countries. Crops and forests may be affected by more insects and plant diseases.  Seasons will be longer in some areas. Storms are expected to be more frequent and intense. Some regions of the world would become dry. Weather patterns would be less prediclable and more extreme.

OZONE LAYER DEPLETION Chlorofluorocarbons (CFCs) and other halogenated ozone depleting substances (ODS) are mainly responsible for man-made chemical ozone depletion. The total amount of effective halogens (chlorine and bromine) in the stratosphere can be calculated and are known as the equivalent effective stratospheric chlorine (EESC).

GLOBAL WARMING STATISTICS According to NASA the hottest year on record was 2005. $100 billion of damage wascaused by hurricanes hitting the U.S. coast in 2005 alone. 15-37% of all plants and animal species could be wiped out by global warming by the 2050.

The greenhouse effect is the process by which absorbtion and emision of infrared radiation by gases in the atmosphere are purported to warm a planet’s lower atmosphere and surface Naturally occurring greenhouse gases have a mean warming effect of about 33 ° C (59 ° F) WATER VAPOR: 36-70% Carbon dioxide: 9-26% Methane: 4-9% Ozone : 3-7%

FUTURE PREDICTIONS Two major ways are there to control global warming Keep the carbon-dioxide out of the atmosphere by storing the gas or its carbon component somewhere else, a strategy called carbon sequestration.  Reduce the production of green house gases.

SAVE ENVIRONMENT SAVE EARTH

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