Saturday, June 7, 2008

Acid Rain-Damaged our environment

Acid rain: damaged tree branches from Black Forest

Acid rain: damaged tree branches from Black Forest




Acid rain damaged gargoyle


Acid rain is a result of air pollution. When any type of fuel is burnt, lots of different chemicals are produced. The smoke that comes from a fire or the fumes that come out of a car exhaust don't just contain the sooty grey particles that you can see - they also contains lots of invisible gases that can be even more harmful to our environment.

Acid rain occurs mostly in the Northern Hemisphere -- the more industrialized, dirtier half of the globe. Winds can sweep up emissions from high smokestacks and carry pollutants far from their original sources, crossing state lines and national borders in the process. Acid rain may not have the complete global range of greenhouse gases, but it is a transboundary, and therefore international, issue.

Acid rain, also known as acid deposition, is caused by emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) from power plants, cars and factories. Natural sources like volcanoes, forest fires and lightning strikes also add to the man-made pollution. SO2 and NOx become acids when they enter the atmosphere and react with water vapor. The resulting sulfuric and nitric acids can fall as wet or dry depositions. Wet deposition is precipitation: acid rain, snow, sleet or fog. Dry deposition falls as acidic particulates or gases.

How to prevent Acid Rains

1.Reduce emissions from mining, smelting and generating electrical power. Consumers can help by using fewer mined resources and reducing electrical power usage, as well as campaigning for government regulation of emissions in their area.
Step2
Reduce emissions produced by oil operations and oil-fueled transportation. Consumers can help reduce emissions produced by oil operations by buying less oil, buying from companies with higher emissions regulations and driving cars with lower emission rates.
Step3
Reduce the amount of carbon dioxide and nitrogen oxides produced by reducing use of coal and wood burning as well as natural gas.
Step4
Cut back on your use of products that produce chlorofluorocarbons, or CFCs. Air conditioning, refrigeration and many aerosol products use or contain CFCs. Reduce the use of air conditioning by using fans and use a single, energy efficient refrigerator per household. Conserve cooled air by not leaving doors open when the air conditioning is on and by not leaving the refrigerator open for extended periods of time.
Step5
Reduce production of sulfur dioxide by conserving paper. Sulfur dioxide is produced in paper production, so read newspapers online rather than buying a newspaper everyday, use the front and back of paper and use recycled paper.
Step6
Reduce the emissions produced by your car by car pooling, planning ahead to combine long trips, biking or walking for short trips and keeping your car well maintained to be sure nothing is leaking.
Step7
Increase energy efficiency in your home by using fluorescent lights, turning lights off when not in use, shutting down utilities when you're on vacation, closing off vents to rooms that are not in use and operating large appliances like dishwashers, washers and driers only when full.
Step8
Reduce your use of manufactured materials such as packaging and other disposable products and recycle as much as you can. Producing new materials and disposing of waste materials are responsible for a large number of the pollutants that cause acid rain.

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