causes of global warming...Fitri :)

This is causes of global warming that I found...

Carbon Dioxide from Power Plants

In 2002 about 40% of U.S. carbon dioxide emissions stem from the burning of fossil fuels for the purpose of electricity generation. Coal accounts for 93 percent of the emissions from the electric utility industry.

Carbon Dioxide Emitted from Cars

About 33% of U.S carbon dioxide emissions comes from the burning of gasoline in internal-combustion engines of cars and light trucks (minivans, sport utility vehicles, pick-up trucks, and jeeps).Vehicles with poor gas mileage contribute the most to global warming

Carbon Dioxide from Airplanes

The UN's Intergovernmental Panel on Climate Change estimates that aviation causes 3.5 percent of global warming, and that the figure could rise to 15 percent by 2050.

Carbon Dioxide from Buildings Buildings

structure account for about 12% of carbon dioxide emissions.

Methane

While carbon dioxide is the principal greenhouse gas, methane is second most important.

Nitrous oxide

Another greenhouse gas is Nitrous oxide (N2O), a colourless, non-flammable gas with a sweetish odour, commonly known as "laughing gas", and sometimes used as an anaesthetic. Nitrous oxide is naturally produced by oceans and rainforests.

Deforestation

After carbon emissions caused by humans, deforestation is the second principle cause of atmospheric carbn dioxide.Deforestation is responsible for the burning and cutting of about 34 million acres of trees each year.

City Gridlock

In 1996 according to an annual study by traffic engineers [as reported in the San Francisco Chronicle December 10, 1996] from Texas A and M University, it was found that drivers in Los Angeles and New York City alone wasted 600 million gallons of gas annually while just sitting in traffic. The 600 million gallons of gas translates to about 7.5 million tons of carbon dioxide in just those two cities.

Carbon in Atmosphere and Ocean

The atmosphere contains about 750 billion tons of carbon, while 1020 billion tons are dissolved in the surface layers of the world's ocean.

Permafrost

Permafrost is a solid structure of frozen soil, extending to depths of 2.200 feet in some areas of the arctic and subarctic regions, containing grasses, roots, sticks, much of it dating back to 30,000 years.

Tundra

A name very suited to the environs of the arctic and subarctic, tundra means 'treeless plain' in Finnish. The tundra is a biome (a major segment of a particular region having distinctive vegetation, animals and microorganisms adapted to a unique climate), home to about 1700 kinds of plants, including shrubs, mosses, grasses, lichens and 400 kinds of flowers.

The conclusion that can I said from this causes is:

* There are 11 major causes of global warming..so let's we think and do something!!!

Thank You..