Within the past few decades‚ there has been no political or public discussion as heated and controversial as the debate over climate change. Climate disputes can be traced back all the way to 1837‚ when Louis Agassiz proposed a theory claiming that Switzerland had once been covered with large ice sheets‚ and have become a big part of the international scientific community since then (Archer and Rahmstorf 2010). Today‚ climate change is not only a scientific issue‚ but it has grown into an economic
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of agricultural chemicals‚which causes high levels of nitrogen and phosphorus in many lakes and rivers.when the excess nutrients applied to the land in the form of fertilizers find their way into the water‚blooms‚or overabundant growth of algae and other aquatic plants ‚result.The algal blooms at the water surface affect the photosynthesis process of the submerged plants by blocking their sunlight‚causing them to die.This problem is compounded when the oxygen levels drop‚and organisms which flourish
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its pros and cons. The Earth is changing rapidly‚ more in adverse ways than we would want and there will come a time when it will be beyond repair. Climate change has touched different sides of how humans procure foods such as seafood. Harmful algal blooms have become prominent as the temperatures increase causing red tides and some can produce toxins that can accumulate in marine life‚ such as shellfish‚ which in turn impact the health
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we did but‚ we ruined the lake once more 40 years later. “First‚ As a result of these pollutants‚ Lake Erie contained increased levels of phosphorus and nitrogen‚ which contributed to eutrophication - a process that encourages the development of algal blooms.” (Rotman) It was called “burning river” or “dead lake”. In 1960 the lake was a terrible it seemed to be like a swamp with lots of algae. It was so bad they said It was easier to travel on land than go on the lake. In my opinion‚ if I was alive
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inorganic material (e.g. sand‚ dust and clay) • Colored dissolved organic matter • Turbidity Biological status related to phytoplankton and other aquatic in situ data estimated in the field: • Secchi depth • Temperature • Occurrence and extent of algal blooms RS in water quality •The first satellite based sensor devoted to
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1. Introduction Water is one of our most important natural resources. Water is used in different purpose such as domestic‚ industrial supply‚ transportation‚ recreation. However‚ nowadays‚ humans are continuously deteriorating rivers‚ lakes‚ and oceans through different agricultural‚ industrial activities. Abel (1996) states that water pollution defines as “the addition of undesirable materials into aquatic bodies” (p.1). This may cause physical‚ chemical or biological change in water‚ leading to
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Effect of domestic sewage pollution Domestic sewage pollution is the pollution caused to the earth by domestic use. It contain of sewage originating primarily from kitchen‚bathroom‚ and laundry sources and also waste from food preparation‚ dishwashing‚ garbage‚ toilets‚ baths‚ showers‚ and sinks. Sewage is the term used for wastewater that often contains faeces‚ urine and laundry waste. Sewage disposal is a major problem in developing countries as many people in these areas don’t have access to
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------------------------------------------------- Impacts of Applications of Chemistry on Society and the Environment ------------------------------------------------- Open Ended Investigation Madeline De-Sanctis INTRODUCTION From the earliest times‚ Chemistry has played a pivotal role in the advancement and enrichment of civilization‚ although sometimes it has also caused harmful and occasional long-reaching catastrophic effects on the environment. The importance of this sphere of science can
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Bioluminescence Have you ever experienced a light show underwater? No‚ you are right that is not and can not be actually lights with electricity‚ but is the notorious scientific discovery of bioluminescence. One of the earliest sightings was by Aniximenes in 500 B.C. where he described that the alluring light show as “glowing when he struck the sea with an oar”. People have observed bioluminescence countless times ever since. In the Mesopelagic zone of the ocean‚ which is about 200m to 1000m
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consequences. As we have seen that is very wrong‚ here are a few of the problems ocean pollution cause: Toxic metals can destroy the biochemistry‚ behavior‚ and reproduction of marine life. Fertilizer runoff creates eutrophication that flourishes algal bloom (rapid increase or accumulation in the population of algae in aquatic systems) which depletes the oxygen content in the water that affects marine life. Today‚ in many parts of the world‚ sewage water is discharged in the ocean
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