In meteorology, visibility is a measure of the distance at which an object or light can be clearly discerned. It is reported within surface weather observations and METAR  code either in meters or statute miles, depending upon the country. ... Various weather stations report this as haze (dry) or mist (moist). ... The same can happen in a sandstorm in and near desert  areas, or with forest fires. ... Visibility degradation is caused by the absorption and scattering of light by  particles  and gases in the atmosphere. ...

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• Grade Level: Undergraduate

When tropical forest is cleared for pasture land, there is an immediate loss of carbon to the atmosphere as carbon dioxide. ... An upward trend in global surface temperatures began in about 1920, and temperatures are reported to have been especially high since 1980. Ocean temperatures are now reported to be rising as well, based on a study just released covering the past 40 years. One current report states that the last three winters represent the warmest trend ever in North America. ... This layer normally filters out a harmful form of ultraviolet light from the sun, known as UV-B. ...

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• Grade Level: Undergraduate

We are also adding small particles and droplets called aerosols that reflect light back into space and tend to cause some areas to cool. ... In addition, the clearing and burning of forests causes the pool of carbon which has been tied up in trees to be released. ... Satellite photos show smoke from the smoldering fires that are rising into the air over the forest. The desire of developed countries for inexpensive meat and forest products is another major contributor to deforestation. ... It is also released as a result of forest clearing, venting in association with oil production, an...

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• Grade Level: Undergraduate

Ultraviolet light affects humans adversely in two specific ways: by damaging the retina, and by altering skin cells so that they become cancerous. ... Dangers of Ozone Depletion Ultraviolet light consists of the "fastest-moving- photons: this refers to their periodic or wave-like speed rather than their objective speed, which, like all other wavelengths of light, is around 3x108 m/s. ... The human body has a system in place to protect somewhat against ultraviolet light, which involves the release of melanin and pigments into the epidermis. This blocks most UV light from reaching cells deep...

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• Grade Level: Undergraduate

An Inconvenient Truth Reaction Paper for "An Inconvenient Truth" The movie was composed of many documented events narrated and discussed by the former U.S Vice President Al Gore. The data gathered and the trends of different climatological graphs were well introduced to the public for better comprehension. The documentary also provided a deeper understanding regarding the most sensitive issue about the environment which is the Global Warming.             It was alarming to see the various effects of the dramatic increase in carbon emissions by the world since carbon is one o...

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• Grade Level: Undergraduate

Many see it as a primarily economic phenomenon, involving the increasing interaction, or integration, of national economic systems through the growth in international trade, investment and capital flows. However, one can also point to a rapid increase in cross-border social, cultural and technolog...

• Word Count: 9131
• Approx Pages: 37
• Grade Level: Undergraduate