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Founded in 1879 and named after Texas' greatest hero General Sam Houston, Sam Houston State University is public shcool within the Texas state university system and located in Huntsville, Texas.
It's a multicultural institution that offers 79 bachelorette degree programs, 54 masters and five ...
A graph that shows in any way the relative amounts of Earth's surface at different elevations with regard to sea level.
Industry:Chemistry; Weather
A group set up by the World Meteorological Organization and the United Nations Environmental Program in 1988, it consists of hundreds of scientists around the world who are studying the earth's atmosphere and climate change. Reports are released periodically beginning in 1990.
Industry:Chemistry; Weather
A high-latitude biome composed of limited biodiversity. Because of the colder temperatures compared to lower latitudes, plants are limited to small bushes, grasses, mosses, and lichens and almost no trees. Mostly below freezing, the temperature in the summer in the tundra can go above zero and cause partial thawing of the upper layers above the permafrost (frozen soil and dead plant stuff) for only a few days or weeks per year. Lots of carbon is stored in the thick mats in tundra layers for hundreds and thousands of years and, if long term temperature of the earth's tundra increases then biological degradation can cause the release of carbon in the form of methane or carbon dioxide. A fire in 2007 in Alaska released large amounts of this type of stored carbon. It's realistic to assume that tundral fires might increase if the earth's temperature warms--warming that recent widely measured temperatures and atmospheric modeling show occurs more at higher latitudes rather than lower--and so tundral fires can increase overtime. This would be a positive feedback cycle since this released carbon would contribute to global warming.
Industry:Chemistry; Weather
A highly reactive molecule or atom with an unpaired electron. The species is often represented by a formula with a single dot as the unpaired electron (see immediately below). Important atmospheric examples include atomic chlorine, chlorine monoxide, hydroxyl radical, NO and NO<sub>2</sub>.
Industry:Chemistry; Weather
A highly reactive molecule or atom with an unpaired electron. The species is often represented by a formula with a single dot as the unpaired electron (see immediately below). Important atmospheric examples include atomic chlorine, chlorine monoxide, hydroxyl radical, NO and NO<sub>2</sub>.
Industry:Chemistry; Weather
A huge protocontinent thought to have existed 200 million years ago and from which all present continents are thought to have formed. ,
Industry:Chemistry; Weather
A hypothetical supercontinent comprising approximately the present continents of the southern hemisphere. See also Pangaea.
Industry:Chemistry; Weather
A international environmental agreement (one of the first) to prevent the use of substances that are harmful to ozone, such as chlorofluorocarbons and halons, in order to protect the ozone layer in a global manner. It was agreed upon in 1987 and has been amended repeatedly since that time.
Industry:Chemistry; Weather
A light, oily hydrocarbon with a melting point of 5. 89 degrees C and a boiling point of 253. 7C. As a gas-phase pollutant it is inactive as a human contact allergen.
Industry:Chemistry; Weather
A major, elevated, linear feature of the seafloor, consisting of many small, slightly offset segments, with a total length of 200 to 200,000 km. This type of plate boundary occurs in a divergence zone, which is a site where two plates are being pulled apart and new oceanic lithosphere is being created.
Industry:Chemistry; Weather
