all these
2006-07-16 22:24:15
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answer #1
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answered by raj 7
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What causes global warming?
Carbon dioxide and other air pollution that is collecting in the atmosphere like a thickening blanket, trapping the sun's heat and causing the planet to warm up. Coal-burning power plants are the largest U.S. source of carbon dioxide pollution -- they produce 2.5 billion tons every year. Automobiles, the second largest source, create nearly 1.5 billion tons of CO2 annually.
Here's the good news: technologies exist today to make cars that run cleaner and burn less gas, modernize power plants and generate electricity from nonpolluting sources, and cut our electricity use through energy efficiency. The challenge is to be sure these solutions are put to use.
By reducing pollution from vehicles and power plants. Right away, we should put existing technologies for building cleaner cars and more modern electricity generators into widespread use. We can increase our reliance on renewable energy sources such as wind, sun and geothermal. And we can manufacture more efficient appliances and conserve energy.
2006-07-16 23:16:17
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answer #2
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answered by fzaa3's lover 4
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Strictly talking , no , peer evaluation may have in touch the different pupils grading one yet another's artwork. so a techniques as international warming is in touch, look, that is like this. CO2 desires to be REGULATED, considering we purely regulate issues that reason polution. till you would in basic terms favor to commence regulating each thing. So yeah, make CO2 a regulated gas, make those who positioned more suitable of it interior the ambience pay for doing so. Deniers of international warming will be debating the benefits of international warming theory lengthy after the U. S. won't be able to feed itself anymore, or you need to bypass to Canada to get a drink of uncontaminated water, because the U. S. is about 5-10 years from growing to be yet another dustbowl , and we in all likelihood don't have that lengthy. it will be lengthy beforehand all the glaciers melt , or NYC is lower than water. about one million/2 of the rustic already has water regulations or some such. ALL of what replaced into temparate aspects of Australia at the prompt are seeing water regulations which could make US electorate blanche. how are you going to need it even as your entire kin of four wins the interior sight "contest" to work out in case you are able to stay very actual on 2 hundred gallons of water, a week. so a techniques as OIL is in touch, you do not favor to problem to a lot, the cost will shoot to 4 , 5 or 6$ a gallon and quite a lot the purely people able to arise with the money for tochronic to artwork will be Prius vendors, there'll be thousands of thousands of people "trapped" interior the suburbs. have thrilling. yet you're the sucker it really is been performed into not wondering there is more suitable than some extreme complications that we are not handling.
2016-12-10 10:42:29
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answer #3
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answered by ? 4
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Global Warming is caused by many things. The causes are split up into two groups, man-made or anthropogenic causes, and natural causes.
Natural Causes :
Natural causes are causes created by nature. One natural cause is a release of methane gas from arctic tundra and wetlands. Methane is a greenhouse gas. A greenhouse gas is a gas that traps heat in the earth's atmosphere. Another natural cause is that the earth goes through a cycle of climate change. This climate change usually lasts about 40,000 years.
Man-made Causes :
Man-made causes probably do the most damage. There are many man-made causes. Pollution is one of the biggest man-made problems. Pollution comes in many shapes and sizes. Burning fossil fuels is one thing that causes pollution. Fossil fuels are fuels made of organic matter such as coal, or oil. When fossil fuels are burned they give off a green house gas called CO2. Also mining coal and oil allows methane to escape. How does it escape? Methane is naturally in the ground. When coal or oil is mined you have to dig up the earth a little. When you dig up the fossil fuels you dig up the methane as well.
Another major man-made cause of Global Warming is population. More people means more food, and more methods of transportation, right? That means more methane because there will be more burning of fossil fuels, and more agriculture. Now your probably thinking, "Wait a minute, you said agriculture is going to be damaged by Global Warming, but now you're saying agriculture is going to help cause Global Warming?" Well, have you ever been in a barn filled with animals and you smell something terrible? You're smelling methane. Another source of methane is manure. Because more food is needed we have to raise food. Animals like cows are a source of food which means more manure and methane. Another problem with the increasing population is transportation. More people means more cars, and more cars means more pollution. Also, many people have more than one car.
OverpopulationSince CO2 contributes to global warming, the increase in population makes the problem worse because we breathe out CO2. Also, the trees that convert our CO2 to oxygen are being demolished because we're using the land that we cut the trees down from as property for our homes and buildings. We are not replacing the trees (an important part of our eco system), so we are constantly taking advantage of our natural resources and giving nothing back in return.
Air pollution :
There are many different chemical substances that contribute to air pollution. These chemicals come from a variety of sources.
- Among the many types of air pollutants are nitrogen oxides, carbon monoxides, and organic compounds that can evaporate and enter the atmosphere.
- Air pollutants have sources that are both natural and human. Now, humans contribute substantially more to the air pollution problem.
- Forest fires, volcanic eruptions, wind erosion, pollen dispersal, evaporation of organic compounds, and natural radioactivity are all among the natural causes of air pollution.
- Usually, natural air pollution does not occur in abundance in particular locations. The pollution is spread around throughout the world, and as a result, poses little threat to the health of people and ecosystems.
- Though some pollution comes from these natural sources, most pollution is the result of human activity. The biggest causes are the operation of fossil fuel-burning power plants and automobiles that combust fuel. Combined, these two sources are responsible for about 90% of all air pollution in the United States.
- Some cities suffer severely because of heavy industrial use of chemicals that cause air pollution. Places like Mexico City and Sao Paulo have some of the most deadly pollution levels in the world.
- Toxic substances from Motor Vehicles
2006-07-16 23:54:44
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answer #4
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answered by inatuk 4
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Burning fuel.
2006-07-16 22:27:17
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answer #5
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answered by r_e_a_l_miles 4
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greenhouse effect
2006-07-16 22:27:19
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answer #6
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answered by jeprx 3
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