global warming

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ppt on global warming .......... plz see

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PowerPoint Presentation: 

A PRoECT ON COMMUNICATION SKILL

It's Getting Hot in Here!: 

It's Getting Hot in Here ! Presented by : Vipin kumar gupta Supriya bisen Vaishali deshmukh

PowerPoint Presentation: 

MILIONS YEARS AGO BUT NOW

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GLOBAL WARMING -- WHAT IT IS ?? Global means land ocean temperature change Global warming is the rise in average temperature of earth’s atmosphere and ocean’s. This article is about the current change in earth climate .For general discussion of how the climate can change and what we do for preventing them. It is……… Rise in earth’s temperature Results from changes in the natural environment Caused by too much carbon dioxide Green houses effects.

THE GREEN HOUSE EFFECTS: 

THE GREEN HOUSE EFFECTS Solar radiation from the Sun reaches the Earth’s atmosphere The surface of the Earth absorbs most of the short-rayed insolation and later releases this heat in the form of infrared radiation into the atmosphere. Some of the heat is absorbed by particles known as “greenhouse gases.” The heat retained by the gases acts as a “heat blanket.”

THE GREEN HOUSE EFFECTS: 

THE GREEN HOUSE EFFECTS Without With

EFFECTS OF GLOBAL WARMING: 

Effects on ozone layer. Effects on Temperature of planet . Effects on Sea level. Effects on Sea life. Effects on Land animals. Effects on Health. Tropical Diseases. Impact on Air. EFFECTS OF GLOBAL WARMING

OZONE LAYER: 

Ozone is a triatomic form of oxygen (O3) found in Earth’s upper and lower atmosphere. The ozone layer, situated in the stratosphere about 15 to 30 km above the earth's surface. OZONE LAYER

EFFECTS ON OZONE LAYERS: 

Depletion of ozone layers. Due to depletion of this living organisms absorbing harmful UVB lights. Which cause many site effects on health. The ozone layer is being destroyed by CFCs and other substances. Ozone depletion progressing globally except in the tropical zone. EFFECTS ON OZONE LAYERS But from 1995 OZONE LAYERS recovered slowly

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Images of Antarctica Taken Indicate A Slow Recovery

EFFECTS ON TEMPERATURE OF EARTH: 

EFFECTS ON TEMPERATURE OF EARTH The increase in temperature 2 degree Celsius per decade for last 30 years which will also cause drier conditions in many important agricultural regions. An increase in global temperatures is expected to cause other changes, including sea level rise, increased intensity of extreme weather events, and changes in the amount and pattern of precipitation.

RISING SEA LEVELS: 

RISING SEA LEVELS Shrinking glaciers The rise of temperature, even to a few degrees, could lead to the melting of ice shelves that hold back glaciers. This results in rising sea levels The Larsen area of North Antarctic, South of Chili and Argentina have lost more than 5,200 sq miles of area. Due to this on up to 2100 expected that sea levels could be more than 20 feet's or 6 meters. Many small islands like Bangladesh , new York lower Manhattan , Indonesia etc. would submerge.

GLOBAL WARMING: SEA LIFE: 

GLOBAL WARMING: SEA LIFE GLOBAL WARMING’S NEGATIVE IMPACT ON SEA LIFE Coral Reef Bleaching— Change in temperature and elevated sea level cause loss of algae in the coral. Coral appears white, or “bleached.” Result is mass death of sea animals, which are dependent on the coral reef. The penguin population near Antarctica has been declining as the distance between them and their food has increased.

EFFECTS ON LAND ANIMALS: 

EFFECTS ON LAND ANIMALS Global warming can disrupt the migration, hibernation and reproductive cycles of certain types of animals. Plants and animals will find it hard to escape or adjust to the effects of warming because humans occupy so much land. Farmland or cities interrupt the movement of species between habitats.

HEALTH AND GLOBAL WARMING: 

HEALTH AND GLOBAL WARMING Extreme temperatures can directly cause the loss of life (ex: 35,000 people died during heat wave in Europe, Aug‘03.) Warmer weather provides an ideal breeding environment for mosquitoes. Diseases such as West Nile will be more common. High temperature can increase pollution of water and air, which harms the human body. Over exposure may: Increase risk of non-melanoma and malignant melanoma skin cancer Higher risks of malignant melanoma from severe sunburns – especially in childhood Risk of malignant melanoma has increased 10% Risk of nonmalignant melanoma has increased 26%

TROPICAL DISEASES: 

TROPICAL DISEASES Global Warming increases drought which lessens the supply of clean drinking water. Cholera It increases temperature providing an ideal breeding environment for mosquitoes. Dengue fever Malaria Yellow fever

IMPACT ON AIR: 

IMPACT ON AIR The atmosphere’s ultimate fate is unclear. More evaporation  increase in cloud cover How High Will the Clouds Be? It makes a difference! Clouds close to the earth reflect sunlight  cooling effect. Clouds high in the atmosphere trap heat  warming effect. Generally: Cloud cover increases Levels of the greenhouse gas methane may increase Hurricanes range farther north, south on warmer water

THE CLIMATE STEWARDSHIP ACT: 

THE CLIMATE STEWARDSHIP ACT First introduced in the senate in 2003 and reintroduced in February 2005 It would reduce carbon dioxide, methane, nitrous oxide, hydroflurocarbon and perfuorocarbons which are released by power plants to 2000 levels by 2010. The bill reduces the risk of global warming without hurting the economy.

HOW TO PREVENT THE GLOBAL WARMING: 

Plant trees Conserve energy: (examples: 1. use low-energy, low-water-use washing machines, 2. use a solar heated system for hot water, 3. use an electric or push mower for gasoline powered mower) Buy energy efficient products Buy products that have reusable or recyclable packaging Reduce use of car (walk instead) HOW TO PREVENT THE GLOBAL WARMING

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Reduce, Reuse, Recycle! 3R’s of Saving Mother Nature