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Answers:You're in luck. The EPA came out today with a warning against global warming. You could also add in the current political debate over the stolen emails, and Obama is soon to go to Copenhagen to strengthen our commitment to this issue at the Climate Conference. His policy is also vastly different from Bush's, so that's a topic too. http://www.youtube.com/watch?v=xNvxzd3-x4M http://www.epa.gov/climatechange/ http://news.google.com/news/search?aq=f&um=1&cf=all&ned=us&hl=en&q=global+warming http://news.sky.com/skynews/Home/World-News/US-Environment-Agency-Says-Greenhouse-Gases-Are-Danger-To-Human-Health-And-Needs-Regulation/Article/200912115495389?lpos=World_News_First_World_News_Article_Teaser_Region_0&lid=ARTICLE_15495389_US_Environment_Agency_Says_Greenhouse_Gases_Are_Danger_To_Human_Health_And_Needs_Regulation http://www.cnn.com/2009/POLITICS/12/07/global.warming.poll/ http://www.cnn.com/2009/OPINION/12/06/frum.global.warming/ http://www.frumforum.com/climategate-no-conspiracy-just-bad-science http://canadafreepress.com/index.php/article/17641 http://www.google.com/search?q=global%20warming%20bush&hl=en&ned=us&tab=nw You could also talk about the economic impact for governments to monitor and regulate water and air pollution.
Answers:lots of ideas, but you don't say what level you are at, nor what kind of funding or experience you have, so it is difficult to give out any ideas for fear that it would just lead to frustration on your part! Reply back with some details, and perhaps I can make some suggestions
Answers:Air pollution is the human introduction into the atmosphere of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or damages the environment. Air pollution causes deaths and respiratory disease. Air pollution is often identified with major stationary sources, but the greatest source of emissions is mobile sources, mainly automobiles. Gases such as carbon dioxide, which contribute to global warming, have recently gained recognition as pollutants by climate scientists, while they also recognize that carbon dioxide is essential for plant life through photosynthesis. The atmosphere is a complex, dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the Earth's ecosystems. There are many substances in the air which may impair the health of plants and animals (including humans), or reduce visibility. These arise both from natural processes and human activity. Substances not naturally found in the air or at greater concentrations or in different locations from usual are referred to as pollutants. Pollutants can be classified as either primary or secondary. Primary pollutants are substances directly emitted from a process, such as ash from a volcanic eruption, the carbon monoxide gas from a motor vehicle exhaust or sulfur doixide released from factories. Secondary pollutants are not emitted directly. Rather, they form in the air when primary pollutants react or connect. An important example of a secondary pollutant is ground level ozone - one of the many secondary pollutants that make up photochemical smog. Note that some pollutants may be both primary and secondary: that is, they are both emitted directly and formed from other primary pollutants. Major primary pollutants produced by human activity include: Sulfur oxides (SOx) especially sulfur dioxide are emitted from burning of coal and oil. Nitrogen oxides (NOx) especially nitrogen dioxide are emitted from high temperature combustion. Can be seen as the brown haze dome above or plume downwind of cities. Carbon monoxide is colourless, odourless, non-irritating but very poisonous gas. It is a product by incomplete combustion of fuel such as natural gas, coal or wood. Vehicular exhaust is a major source of carbon monoxide. Carbon dioxide (CO2), a greenhouse gas emitted from combustion. Volatile organic compounds (VOC), such as hydrocarbon fuel vapors and solvents. Particulate matter (PM), measured as smoke and dust. PM10 is the fraction of suspended particles 10 micrometers in diameter and smaller that will enter the nasal cavity. PM2.5 has a maximum particle size of 2.5 m and will enter the bronchies and lungs. Toxic metals, such as lead, cadmium and copper. Chlorofluorocarbons (CFCs), harmful to the ozone layer emitted from products currently banned from use. Ammonia (NH3) emitted from agricultural processes. Odors, such as from garbage, sewage, and industrial processes Radioactive pollutants produced by nuclear explosions and war explosives, and natural processes such as radon. Secondary pollutants include: Particulate matter formed from gaseous primary pollutants and compounds in photochemical smog, such as nitrogen dioxide. Ground level ozone (O3) formed from NOx and VOCs. Peroxyacetyl nitrate (PAN) similarly formed from NOx and VOCs. Minor air pollutants include: A large number of minor hazardous air pollutants. Some of these are regulated in USA under the Clean Air Act and in Europe under the Air Framework Directive. A variety of persistent organic pollutants, which can attach to particulate matter.  Sources Dust storm approaching Stratford, Texas Using a controlled burn on a field in South Georgia in preparation for spring planting. Puxi area of Shanghai at sunset. The sun has not actually dropped below the horizon yet, rather it has reached the smog line.Sources of air pollution refer to the various locations, activities or factors which are responsible for the releasing of pollutants in the atmosphere. These sources can be classified into two major categories which are: Anthropogenic sources (human activity) mostly related to burning different kinds of fuel "Stationary Sources" as smoke stacks of power plants, manufacturing facilities, municipal waste incinerators. "Mobile Sources" as motor vehicles, aircraft etc. Marine vessels, such as container ships or cruise ships, and related port air pollution. Burning wood, fireplaces, stoves, furnaces and incinerators . Oil refining, and industrial activity in general. Chemicals, dust and controlled burn practices in agriculture and forestry management, (see Dust Bowl). Fumes from paint, hair spray, varnish, aerosol sprays and other solvents. Waste deposition in landfills, which generate methane. Military, such as nuclear weapons, toxic gases, germ warfare and rocketry. Natural sources Dust from natural sources, usually large areas of land with little or no vegetation. Methane, emitted by the digestion of food by animals, for example cattle. Radon gas from radioactive decay within the Earth's crust. Smoke and carbon monoxide from wildfires. Volcanic activity, which produce sulfur, chlorine, and ash particulates.  Emission factors Main article: AP 42 Compilation of Air Pollutant Emission Factors Air pollutant emission factors are representative values that attempt to relate the quantity of a pollutant released to the ambient air with an activity associated with the release of that pollutant. These factors are usually expressed as the weight of pollutant divided by a unit weight, volume, distance, or duration of the activity emitting the pollutant (e.g., kilograms of particulate emitted per megagram of coal burned). Such factors facilitate estimation of emissions from various sources of air pollution. In most cases, these factors are simply averages of all available data of acceptable quality, and are generally assumed to be representative of long-term averages. The United States Environmental Protection Agency has published a compilation of air pollutant emission factors for a multitude of industrial sources. The United Kingdom, Australia, Canada and other countries have published similar compilations, as has the European Environment Agency.    Indoor air quality (IAQ) Main article: Indoor air quality A lack of ventilation indoors concentrates air pollution where people often spend the majority of their time. Radon (Rn) gas, a carcinogen, is exuded from the Earth in certain locations and trapped inside houses. Building materials including carpeting and plywood emit formaldehyde (H2CO) gas. Paint and solvents give off volatile organic compounds (VOCs) as they dry. Lead paint can degenerate into dust and be inhaled. Intentional air pollution is introduced with the use of air fresheners, incense, and other scented items. Controlled wood fires in stoves and fireplaces can add significant amounts of smoke particulates into the air, inside and out. Indoor pollution fatalities may be caused by using pesticides and other chemical sprays indoors without proper ventilation. Carbon monoxide (CO) poisoning and fatalities are often caused by faulty vents and chimneys, or by the burning of charcoal indoors. Chronic carbon monoxide poisoning can result even from poorly adjusted pilot lights. Traps are built into all domestic plumbing to keep sewer gas, hydrogen sulfide, out of interiors. Clothing emits tetrachloroethylene, or other dry cleaning fluids, for days after dry cleaning. Though its use has now been banned in many countries, the extensive use of asbestos in industrial and domestic environments in the past has left a potentially very dangerous material in many localities. Asbestosis is a chronic inflammatory medical condition affecting the tissue of the lungs. It occurs after long-term, heavy exposure to asbestos from asbestos-containing materials in structures. S
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