Xem 1-20 trên 69 kết quả Deforestation
  • Report by the Comm. on Climate and Tropical Forests, which was formed in 2009 to ensure effective protection of tropical forests primarily as part of U.S. climate change policies, but also through engagement in internat. agree. The intent has been to create actionable, politically viable recommend. that can inform and guide the U.S. in its legislative and diplomatic negotiations on this issue. Contents: Summary for Policy Makers; Climate Change and Tropical Forests; Financing Forest Emission Reductions; International Cooperation; Designing U.S.

    pdf72p konbetocroi 07-01-2013 31 11   Download

  • Global warming is the rising average temperature of Earth's atmosphere and oceans since the late 19th century and its projected continuation. Since the early 20th century, Earth's average surface temperature has increased by about 0.8 °C, with about two thirds of the increase occurring since 1980. Warming of the climate system is unequivocal, and scientists are more than 90% certain that most of it is caused by increasing concentrations of greenhouse gases produced by human activities such as deforestation and the burning of fossil fuels.

    pdf103p quynhp 21-11-2009 271 110   Download

  • A. READING (pages 126-129) adventure (n) sự phiêu lưu attempt (v) cố gắng backpack (n) cái ba lô đeo trên vai battery (n) pin, bình trữ điện be in danger (exp) lâm vào cảnh nguy hiểm break (v) ngắt, bẻ gãy breathe (v) thở canister (n) bình chứa carve (v) khắc, chạm clean up thu dọn clim up / down leo lên / xuống danger (n) sự nguy hiểm deforestation (n) nạn phá rừng deposit (n) tiền đặt cọc dispose of (v) vứt bỏ ensure (v) bảo đảm B. LISTENING (pages 129-131 awareness (n) ý thức destroy (v) phá hủy...

    pdf32p lehuanss 20-09-2012 205 74   Download

  • Bạn hãy điền những vấn đề về môi trường trong khung dưới đây vào các bức tranh tương ứng. garbage dump air pollution water pollution deforestation dynamite fishing spraying pesticides

    pdf11p superman1111 18-03-2011 93 33   Download

  • Vision & Guiding Principle Executive Director Report Organisational Structure Regional Manager’s Report Avoided Deforestation Regional Projects Australia Cambodia Fiji Maldives Papua New Guinea Solomon Islands Vanuatu Finances Board of Trustees Partners 4 5 6 7 8 10 12 14 16 18 20 22 24 26 30 31 .Vision & Guiding Principles Live & Learn Environmental Education’s mission is to reduce poverty and foster greater understanding and action towards a sustainable future through education, community mobilisation and supportive partnerships.

    pdf32p vantrungtran 01-02-2010 133 26   Download

  • As human beings currently use or appropriation of approximately 40% (through deforestation and land-use change) land production capacity, accurate account of all existing and potential biomass energy road use is important to chart the way forward in global scale, and in different areas. With the complexity of biomass as a source of many end products, food, this volume shed light on all topics related to biomass highlight new and review existing methods of production, its detection and usage....

    pdf558p samsungwifi 04-04-2012 80 22   Download

  • The Mekong River Delta in Vietnam can be considered as a large tropical wetland, in which two typical eco-forest wetlands can be distinguished: the inland Melaleuca forest wetlands and the coastal mangrove forest wetlands. Their main functions are the provision of forest commodities, the regulation of the water balance and biodiversity conservation. However as elsewhere under human pressure their existence is under the threat of forest fires and deforestation. Their protection requires the implementation of a multi-level national or sub-national planning policy.

    pdf0p haivan 16-03-2009 128 19   Download

  • In the first stage of the analysis, we examined either relationships for one language over time or for the two languages (English and Spanish) at the same time. Thus, we first looked at relationships between English performance at the end of second grade and English performance at the end of third grade and end of fourth grade. As expected, we found moderate to strong positive relationships for each of the reading tasks. We also evaluated the relationship between English performance at the end of second grade and Spanish performance at the same time. We found moderate...

    pdf207p commentcmnr 03-06-2013 32 19   Download

  • Forests are an integral part of global sustainable development. The World Bank estimates more than 1.6 billion people to be dependent on forests for their livelihoods with some 300 million living in them. The forest product industry is a source of economic growth and employment, with global forest products traded internationally is estimated at $327 billion. The Food and Agriculture Organization (FAO) estimates that every year 130,000 km² of the world's forests are lost due to deforestation.

    pdf312p baobinh1311 25-09-2012 28 15   Download

  • The concept of forest sustainability dates from centuries ago, although the understanding of sustainable forest management (SFM) as an instrument that harmonizes ecological and socio-economic concerns is relatively new. The change in perspective occurred at the beginning of the 1990s in response to an increased awareness of the deterioration of the environment, in particular of the alarming loss of forest resources. The main and most striking cause of this deterioration is the deforestation occurring in some areas of the world.

    pdf269p baobinh1311 25-09-2012 35 15   Download

  • Metabolism of pesticides denotes that any foreign substance that enters in the living system and how it will be changed into non-toxic and thrown out due to the enzymatic activity and other mode of action. When chemical toxins applied to nonliving substance (soil and water) that will lose the toxic principles by degradation process due to the action of biotic and abiotic factors. The time to nullify the toxicity is of prime importance and it vary depending upon the chemical molecule and environmental conditions.

    pdf386p conquynho32 18-09-2012 27 13   Download

  • As rates of deforestation and land degradation, and losses of biodiversity and ecosystem services, continue to rise globally, the international community is faced with the challenge of finding land use interventions that can mitigate or reduce the impact of these environmental issues. Agroforestry, the integration of trees in farming systems, has the potential for providing rural livelihoods and habitats for species outside formally protected lands, connecting nature reserves, and alleviating resourceuse pressure on conservation areas.

    pdf176p conquynho32 14-09-2012 34 11   Download

  • Thus, it remedies soil degradation, desertification, and deforestation. Jatropha is native of tropical America, but now flourish in many parts of the tropics and sub-tropics in Africa/Asia. Various parts of the plant are of medicinal(both human and veterinary purposes) value for instance, and are under intensive scientific investigation. The oil is a strong purgative, widely employed as an antiseptic for cough, skin diseases, and a pain reliever from rheumatism. Jatropha latex can heal wounds and also has antimicrobial properties (Openshaw, 2000).

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  • This Minor Field Study (MFS) was performed by Teresia Lindberg and Anna Nylander, who are both studying Eco-toxicology at Uppsala University in Sweden. The report is a Master´s thesis for Teresia Lindberg. The Swedish International Development Agency (Sida) finances a number of so-called Minor Field Studies for students or young people to carry out a research project in a developing country. The study usually takes place in one of Sida´s target countries and is part of a local Sida-sponsored aid programme.

    pdf82p phongmt1993 09-08-2013 41 10   Download

  • S. Robert Aiken was educated in the UK, Canada, and the United States. He is a cultural and historical geographer with a long-standing interest in tropical deforestation and environmental change in Southeast Asia, focusing mainly on Malaysia and Indonesia. He is presently working on indigenous land rights issues in Malaysia. Dr Aiken is coauthor (with C. H. Leigh) of Vanishing Rain Forests: The Ecological Transition in Malaysia (Oxford: Oxford University Press, 1992/1995) and author of Imperial Belvederes: The Hill Stations of Malaya (Kuala Lumpur: Oxford University Press, 1994).

    pdf305p huetay_1 28-02-2013 26 9   Download

  • This publication has been designed to share IFAD’s experience with a broader public. It uses examples of instruments, processes and practices selected from IFAD’s project portfolio. The theme of IFAD’s 2001 portfolio review was the environment and natural resource management. Environment and Natural Resource Management: IFAD’s Growing Commitment draws extensively on that progress report, which was presented at the Seventy-Second Session of the IFAD Executive Board in April 2001.

    pdf24p yeutinh98 19-09-2012 32 8   Download

  • Soil loss for erosion is a natural phenomenon in soil dynamics, influenced by climate, soil intrinsic properties, and morphology, that can both trigger and enhance the process. Anthropic activities, like inappropriate agricultural practices, deforestation, overgrazing, forest fires and construction activities, may exert a remarkable impact on erosion processes or, on the other hand, contribute to soil erosion mitigation through a sustainable management of natural resources.

    pdf200p camchuong_1 04-12-2012 27 8   Download

  • Phát minh bóng đèn điện của Thomas Edison, phát minh vô tuyến của Lee DeForest, những bản nhạc bất hủ của Beethoven, Mozart... đã làm thay đổi cả thế giới. Đã bao giờ bạn tự hỏi điều gì đã giúp họ tạo ra những phát minh đó?

    pdf4p danthanh1234 27-10-2010 54 7   Download

  • Since 2000, the shrimp industry expands at a fast rate in the coastal areas of the Mekong Delta, Vietnam. Shrimp farming is known for its negative impact on the coastal environment. However, other human interventions like agriculture and urbanization also deteriorate the coastal environment. The land cover changes between 1968 and 2003 were determined and analyzed for the Cai Nuoc district, Ca Mau Province, Vietnam, using photos from 1968, 1992 (aerial photographs), 1997/98 (Spot) and 2003 (Landsat).

    pdf18p nguyenngocsonctu 05-12-2010 77 7   Download

  • Impoverishing the local resource base can impoverish wider areas: deforestation by highland farmers causes flooding on lowland farms; factory pollution robs local fishermen of their catch. Such grim local cycles now operate nationally and regionally. Dryland degradation sends environmental refugees in their millions across national borders. Deforestation in Latin America and Asia is causing more floods, and more destructive floods, in downhill, downstream nations. Acid precipitation and nuclear fallout have spread across the borders of Europe.

    pdf79p yeurauxanh88 28-09-2012 23 7   Download

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