ENVIRONMENTAL PROBLEMS BIODIVERSITY LOSS Biodiversity - refers to the number and size of populations in a community; variability of species in an area In general‚ there are three categorical levels of biodiversity: 1. Genetic biodiversity - involves populations‚ individuals‚ chromosomes‚ genes and nucleotides 2. Taxonomic biodiversity - include kingdoms‚ phyla‚ orders‚ families‚ genera‚ species‚ subspecies and populations - for practical reasons‚
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with sustainable growth‚ energy needs are increasing day by day throughout the world. At the same time fossil fuels are depleting and lots of environmental issues are coming into picture for addition of any more fossil fuel based power plants. So many countries in the world including Asia Pacific region have placed emphasis on the development of renewable sources of energy in order to reduce fossil fuel consumption and decrease pollution. In the quest for a greener planet and renewable energy sources
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consumption had increased because of population increase. Fossil fuels are the most commonly used by industrialized nations (in fact the world at large) these are oil‚ coal and gas which supplies about 90% of the worlds commercially traded energy. Fossil fuels were formed hundreds of millions of years ago; they are an accumulation of energy rich organic molecules produced by organisms as a result if photosynthesis over millions of years‚ fossil fuels are like concentrated stored solar energy. because
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our new eaarth as “a played-out rock and a hot place”. We are drilling and extracting fossil fuels‚ burning them into CO2 that causes greenhouse effect. The problem is that even we have a sense of what we are doing‚ we are still unwilling to change our behavior‚ and according to McKibben‚ it’s all about the money. Some companies not willing to give up their profits on fossil fuels; in addition‚ the existing fossil fuel infrastructures worth at least 10 trillion‚ which takes 10-50 years to be paid
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Causes of Climate Change Climate change is a long-term shift in weather conditions identified by changes in temperature‚ precipitation‚ winds‚ and other indicators. Climate change can involve both changes in average conditions and changes in variability‚ including‚ for example‚ extreme events. The earth’s climate is naturally variable on all time scales. However‚ its long-term state and average temperature are regulated by the balance between incoming and outgoing energy‚ which determines the Earth’s
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but the former takes a more natural‚ less energy intensive path‚ while the latter takes more energy input from the use of fossil fuels to power the machines to plant‚ sow and maintain the tree farms. Once the trees are felled‚ requiring energy input‚ it is converted to pulp. The transformation of tree chips into pulp and then paper is an energy intensive endeavor‚ taking fossil fuel inputs to form and shape the paper into a specific product. Some paper products take more processing in order to obtain
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why I believe both sources have important facts of why and why not we should continue the use of these. My thoughts on renewable energy of course is more determined for the fact that it is based of natural energy unlike nonrenewable that is based on fossil‚ coal‚ and chemicals that can eventually contribute to global warming in our world. Nonrenewable energy also provides us with benefits for one that is more economic rather than solar energy. On my essay I have also included other sources of ideas
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sunup to sundown about 30 percent of the world’s energy is being used by the United States. Ideally energy comes from the burning of fossil fuels and oils imported from across the globe. However‚ there has been various disputes on how the United States could find alternative energy sources for widespread use. Alternative energy is any form of energy used that is not fossil fuel that come from energy sources that can be replenished in a short period of time. Such as‚ hydroelectric and nuclear energy which
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quality. Cost Issues Even though the cost of wind power has decreased dramatically in the past 10 years‚ the technology requires a higher initial investment than fossil-fueled generators. Roughly 80% of the cost is the machinery‚ with the balance being site preparation and installation. If wind generating systems are compared with fossil-fueled systems on a "life-cycle" cost basis (counting fuel and operating expenses for the life of the generator)‚ however‚ wind costs are much more competitive with
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remote functions. But at what price is this costing us‚ our environment‚ and our future. Alternative energy sources‚ also known as renewable energy‚ are energy sources produced from natural resources rather than fossil fuels or from the production of nuclear reaction. Unlike traditional fossil fuels‚ renewable energy sources such as sunlight‚ wind‚ water‚ and geothermal heat are replenished naturally in our environment as a reoccurring worldly function. As our world population continues to grow and
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