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  • Environmental Studies Factsheet: 70. Cost Benefit Analysis: case studies

    Environmental Studies Factsheet: 70. Cost Benefit Analysis: case studies

      Cost Benefit Analysis (CBA) and Environmental Impact Assessment (EIA) are used as decision-making tools, to assess the viability of projects.   Cost-Benefit Analysis This is an econom...

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  • Environmental Studies Factsheet: 71. Pollutant Pathways: Pesticides

    Environmental Studies Factsheet: 71. Pollutant Pathways: Pesticides

      Understanding the properties of a pollutant is vital. We need to know how it is going to react with, or move in, air, water and living tissues. We need to know whether it is more soluble in w...

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  • Environmental Studies Factsheet: 72. The Science of Climate Change

    Environmental Studies Factsheet: 72. The Science of Climate Change

      This Factsheet provides a comprehension exercise on the science of climate change. It is based upon the Executive Summary of the Stern Report, published in December 2006. Overwhelming scien...

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  • Environmental Studies Factsheet: 73. Ozone Update

    Environmental Studies Factsheet: 73. Ozone Update

      This Factsheet provides an update on the success of the Montreal Protocol and summarises the type of exam questions which appear on stratospheric ozone and its depletion. Ozone is a highly ...

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  • Environmental Studies Factsheet: 74. Recording Plant Species

    Environmental Studies Factsheet: 74. Recording Plant Species

    Here is an extract from a recent Chief Examiner’s report on candidate’s efforts on an ecology sampling question: “Candidates showed little evidence of having actually carried ou...

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  • Environmental Studies Factsheet: 75. Is Hydroelectricity a Good Idea?

    Environmental Studies Factsheet: 75. Is Hydroelectricity a Good Idea?

      Hydro-electric power is our largest source of renewable energy and supplies about 20% of the world’s electricity. Most hydro-electricity is generated by constructing a dam. Most big r...

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  • Environmental Studies Factsheet: 76. Practicalities Of Domestic Wind Energy Generation

    Environmental Studies Factsheet: 76. Practicalities Of Domestic Wind Energy Generation

      Urban energy generation such as that produced by small scale wind turbines installed on or around buildings is an example of microgeneration. The UK Government has set targets of reducing t...

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  • Environmental Studies Factsheet: 77. Are Biofuels More Harmful Than Petroleum?

    Environmental Studies Factsheet: 77. Are Biofuels More Harmful Than Petroleum?

      What are biofuels? Biomass materials such as sugar cane, rapeseed, corn, straw, wood and animal waste can be transformed into biofuels for transport. Biodiesel and bioethanol are the most co...

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  • Enviro Studies Factsheet: 78. Habitat Protection and Management Conservation of Lowland Heaths

    Enviro Studies Factsheet: 78. Habitat Protection and Management Conservation of Lowland Heaths

      What is heathland? Heaths are open landscapes characterised by the presence of dwarf shrubs such as heather or ling at a cover of at least 25%. They are associated with sandy (therefore fre...

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  • Environmental Studies Factsheet: 79. Ocean Productivity

    Environmental Studies Factsheet: 79. Ocean Productivity

      This Factsheet examines the factors affecting ocean productivity and the future of global fish stocks. The oceans are far less productive than land areas. They provide 34% of the world&rsqu...

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