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The extra growing medium and vegetation insulates the building from intense temperatures and minimizes heat gain. Green roofs mitigate water runoff and sewer overflows. Vegetation and soil act as a sponge, absorbing and filtering water that would normally plunge down gutters, wash through polluted streets and over-tax sewer systems. A green roof's plants remove air particulates, produce oxygen and provide shade. They use heat energy during evapotranspiration, a natural process that cools the air as water evaporates from plant leaves. Evapotranspiration and the shading provided by plants help counter the Urban Heat Island Effect brought about by an excess of reflective and impermeable surfaces in cities and suburbs. Because Urban Heat Islands increase temperatures in urban and suburban areas, they amplify the demand for air conditioning and launch a cycle of energy consumption that contributes to global warming. If green roofs become a common building initiative, cities can reduce the uncomfortable effects of Urban Heat Islands.|Chemical analysis and materials testing labs can help business and industry with a myriad of complex scientific and technical issues. • What is this unknown material? • Why is my product failing? • Why is my competitor's product failure rate lower? • What is the source of product contamination? • What are the ingredients of this sample? Below are three specific examples of how materials testing. Chemical analysis labs aided companies in finding a solution to a difficult problem. Solution: For cost and safety reasons, a baby food supplier wished to change from glass jars to plastic bottles for its baby food product line. Safety concerns were paramount, since plastics can leach chemicals such as additives. The company had identified 3 plastic bottle suppliers. The challenge was to determine which plastic bottles would release the least amount of chemicals into the product. Scientists at an analytical lab conducted extractable and leachable studies by subjecting the plastic bottle to foods and temperatures equivalent to real world conditions. Electronic cigarettes closely resemble the real thing. You're at your favorite restaurant, enjoying a meal. A diner at the next table is puffing on a cigarette, letting out a cloud of smoke. Because smoking isn't allowed in the restaurant, you're thinking about asking the smoker to put the cigarette out. But before you protest, consider this: Your neighbor may not be smoking at all. Electronic cigarettes, also known as smokeless cigarettes, e-cigarettes, or e-cigs, are an alternative method of consuming nicotine, the addictive chemical found in tobacco. Manufacturers often design e-cigarettes to look like regular cigarettes, but they contain no tobacco and don't require a match -- or any flame at all. There's no fire, no ash and no smoky smell. E-cigarettes do not contain all of the harmful chemicals associated with smoking tobacco cigarettes, such as carbon monoxide and tar. Manufacturers and satisfied customers say the e-cigarette is a healthier alternative to tobacco cigarettes, which cause millions of deaths every year. oscars 2020

















































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