saurav sinha

WELCOME

GLOBAL WARMING-A THREAT TO MANKIND

The increase in temperature of earth’s atmosphere that is caused by increase of greenhouse gases…

What is Global Warming???????

Causes of Global Warming•Emission of greenhouse gases the major cause of global warming

is the emission of green housegases like carbon dioxide, methane,

nitrous oxide etc into the atmosphere.

The major source of carbon dioxideis the power plants. These power

plants emit large amounts of carbondioxide produced from burning of

fossil fuels for the purpose ofelectricity generation

Other causes

Deforestation = fewer treesfewer trees = more CO2

more CO2 = Enhanced Greenhouse Effect

Enhanced Greenhouse Effect = Global warming

Some Facts• Human population x 4 in 100 years.• It took 10000 generations of human beings to

reach 2 Billion.• Humans have tripled that in less that one

lifetime.

Some unequivocal data• At the end of 2002, the concentration of carbon dioxide was

just above 370ppm.

• This is probably the highest in at least 400,000 years

Some unequivocal Data• Every country bears its share of responsibility, The USA being

number one.

Source: Footprint Network

A reality in pictures

• Before the warming: Glacier National Park, USA 1932

• After the warming: Glacier National Park, USA 1988

A reality in pictures

• Before the warming: Peru, 1980

• After the warming: Peru, 2002

A reality in picture

• Before the warming: Kilimanjaro, 1970

• After the warming: Kilimanjaro, 2000

A reality in pictures

• Before the warming: Nepal, 1978

• After the warming: Nepal, 2004

A reality in pictures

• Even more obvious from space, this pictures of the North Polar cap from NASA show a melting of 25% in 25 years:

Fishes are dieing due to global warming

Consequence of global warming:-

Sea level is increasing due to thermal expension ofwater when it gets heated

• The arctic ocean could be ice free in summer by 2050.8.

• Heat waves will be more frequent and more intense.because ozone layer decreases

• Droughts and wildfires will occur more often.

Some unequivocal event

1.Reduce, Reuse, Recycle2. Plant a Tree

3. Drive less and Drive Smart

SOME SOLUTIONS:-It is a human reaction to turn to defeatism in front of such a huge issue but this is where we need to show determination.