Human Alteration of the Carbon Cycle free essay sample

Human Alteration of the Carbon Cycle Recently, scientists have studied both short- and long-term measurements of atmospheric CO2 levels. Their data revealed that human activities are significantly altering the natural carbon cycle. Since the beginning of the industrial revolution, human activities such as the burning of fossil fuels and deforestation have accelerated, and both have contributed to a long-term rise in atmospheric CO2. Burning oil and coal releases carbon into the atmosphere far more rapidly than it is being removed, and this imbalance causes atmospheric carbon dioxide concentrations to increase. In addition, by clearing forests, we reduce the ability of photosynthesis to remove CO2 from the atmosphere, also resulting in a net increase. Because of these human activities, atmospheric carbon dioxide concentrations are higher today than they have been over the last half-million years or longer. Because CO2 increases the atmosphere’s ability to hold heat, it has been called a â€Å"greenhouse gas. We will write a custom essay sample on Human Alteration of the Carbon Cycle or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Without substantive changes in global patterns of fossil fuel consumption and deforestation, warming trends are likely to continue. The best scientific estimate is that global mean temperature will increase between 1. 4 and 5. 8 degrees C over the next century as a result of increases in atmospheric CO2 and other greenhouse gases. This kind of increase in global temperature would cause significant rise in average sea-level (0. 09-0. 88 meters), exposing low-lying coastal cities or cities located by tidal rivers. Even without the changes in climate, however, increased concentrations of CO2 could have an important impact on patterns of plant growth worldwide. Because some species of plants respond more favourably to increases in CO2 than others, scientists believe we may see distinct shifts in plant species as a result of increasing atmospheric CO2 concentrations, even without any change in temperature. For example, under elevated CO2 conditions, shrubs are thought to respond more favourably than certain grass species due to their slightly different photosynthetic pathway. Human Alteration of the Carbon Cycle free essay sample Human Alteration of the Carbon Cycle Recently, scientists have studied both short- and long-term measurements of atmospheric CO2 levels. Their data revealed that human activities are significantly altering the natural carbon cycle. Since the beginning of the industrial revolution, human activities such as the burning of fossil fuels and deforestation have accelerated, and both have contributed to a long-term rise in atmospheric CO2. Burning oil and coal releases carbon into the atmosphere far more rapidly than it is being removed, and this imbalance causes atmospheric carbon dioxide concentrations to increase. In addition, by clearing forests, we reduce the ability of photosynthesis to remove CO2 from the atmosphere, also resulting in a net increase. Because of these human activities, atmospheric carbon dioxide concentrations are higher today than they have been over the last half-million years or longer. Because CO2 increases the atmosphere’s ability to hold heat, it has been called a â€Å"greenhouse gas. We will write a custom essay sample on Human Alteration of the Carbon Cycle or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Without substantive changes in global patterns of fossil fuel consumption and deforestation, warming trends are likely to continue. The best scientific estimate is that global mean temperature will increase between 1. 4 and 5. 8 degrees C over the next century as a result of increases in atmospheric CO2 and other greenhouse gases. This kind of increase in global temperature would cause significant rise in average sea-level (0. 09-0. 88 meters), exposing low-lying coastal cities or cities located by tidal rivers. Even without the changes in climate, however, increased concentrations of CO2 could have an important impact on patterns of plant growth worldwide. Because some species of plants respond more favourably to increases in CO2 than others, scientists believe we may see distinct shifts in plant species as a result of increasing atmospheric CO2 concentrations, even without any change in temperature. For example, under elevated CO2 conditions, shrubs are thought to respond more favourably than certain grass species due to their slightly different photosynthetic pathway.

Quality Improvement essays

Quality Improvement essays Goodyear is the leading tire manufacturer in the U.S. With a number of different brands, Goodyear has a tire for almost all types of cars, trucks, agricultural vehicles and off-road vehicles. This paper evaluates the need for quality improvement in the raw-material supplier, distribution and marketing of the tires in the U.S. Production and manufacturing are important areas where traditionally quality management has been emphasized and stressed. In recent times however there is an increasing trends by organizations to also improve the quality of their supply and distribution channels with the aim of improving customer satisfaction. In the organizational setting, quality is often defined based on the need of the customer and how an organization meets this need. Product performance and perception play an important role in identifying the perception of quality that a customer might have. Satisfying customer needs has created a new need for managing customer relationship and providing the desired service. The customers for Goodyear Tire Company are identified as follows: The Original Equipment Tire Customers (OEM): This includes the car manufacturers who constitute approximately 25-30% of the total tire consumption. (Kerin and Peterson, 2004) The tires manufactured by the company are used on a variety of cars manufactured by GM, Ford, Chrysler, Mazda and Toyota to name a few. The demand for tires from this type of customer depends on the automobile industry, which in turn depends on the volume of cars sold. Goodyear considers the OEM customer very important, as, if customers were satisfied with the quality and the performance of tires on their vehicles they were more likely to replace their tires with replacements from the same company. Auto manufacturers also prefer...