1,724,156 research outputs found

    Manual on the biomarkers recommended for the MED POL Biomonitoring Programme

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    The scope of this manual is to serve as an initial source of technical reference for laboratories interested to start routine biological-effects pollution monitoring. A number of biomarkers have been considered in this manual, starting from those capable of giving a general indication of biological stress due to pollution. These biomarkers of stress (general stress indices) include the assessment of damage to genetic and subcellular components. Both the elevation of enzymatic activity of the mixed function oxygenase system (MFO) and the induction of metallothionein (MT) protein synthesis also termed as biomarkers of exposure (specific stress indices), are considered.The potential use of the last two biomarkers is considerable, since these biomarkers are able to show the cellular response to heavy metals (MT) and aromatic organic xenobiotic compounds (MFO), both of which are considered as being major pollutants in coastal areas. Such biomarkers seem to offer the best information on the biological response of the animals to the two classes of toxic pollutants therefore reporting an early warning signal that environmental damage is in progress. They have been carefully characterised in a number of marine organisms and proved to be suitable to identify a biological response induced by the effects of the chemical pollutants. However, due to the complex nature of these biological responses, extreme caution should be exercised when coming to interpret monitoring results from field stations. These responses have to be assessed in the light of the physiological status of the test organisms at the time of sampling which can be ascertained by the measurement of the two general stress indices mentioned above (genetic damage and alteration of lysosomal activity). This manual also attempts to address a number of technical pitfalls and whenever possible, suggests ways how to enhance the certainty of biomonitoring results.peer-reviewe

    United Nations Environment Programme

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    The United Nations Environment Programme offers a wealth of information, including news, reports, articles, maps, quizzes, and data, on various environment and development issues. The UNEP provides different lists of resources for each audience - government officials, scientists, academics, journalists, young people, business persons, and civil society representatives. The issues addressed fall within the topics of environmental assessment, biodiversity, chemicals, freshwater, marine and coastal areas, land, atmosphere, energy, urban issues, civil society, business and industry, governance and law, and sustainable consumption. Educational levels: General public, Graduate or professional, High school, Middle school, Undergraduate lower division, Undergraduate upper division

    Regional Action Plan on Marine Litter Management (RAPMaLi) for the Wider Caribbean Region

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    This document provides an update to the 2008 “Marine Litter in the Wider Caribbean: A Regional Overview & Action Plan” (RAPMaLi). The regional overview and development of the 2008 RAPMaLi was part of an initiative conducted by the United Nations Environment Programme Caribbean Regional Coordinating Unit (UNEP-CAR/RCU) with financial support from UNEP’s Regional Seas Programme and the UNEP Global Programme of Action. This update was commissioned by United Nations Environment Programme Caribbean/ Regional Coordinating Unit (UNEP-CAR/RCU)

    Building disaster-resilient communities and economies

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    Executive summary The need for building resilience Natural hazards have the potential to devastate communities and economies around the world. Natural hazards are inevitable, but not natural disasters. When a natural hazard occurs, it is the collective societal resilience that will determine whether that event results in a natural disaster. This century, more than one million people have lost their lives to natural disasters. Last year alone around 20,000 people were killed or went missing in natural disasters, the majority in storms, floods and other severe weather events. The impact of natural disasters can reverberate long after the event itself—global economic losses due to natural disasters in 2013 amounted to USD 131 billion, which represents almost 2% of GDP. The costs of recovery from these natural disasters—borne by governments, NGOs, business and communities—consume scarce public and private resources which could otherwise be used to develop social, economic and natural capital. Much of this can be prevented by building disaster-resilient communities and economies. Reducing disaster risk before an event can have a direct impact on how well, and how quickly, communities recover. Across many nations, there is a funding imbalance between investing in pre-disaster resilience and paying the costs of post-disaster relief and recovery. Investment in building up- front resilience and hazard preparedness provides a positive return and reduces the need for recovery. It is estimated that every dollar spent in disaster risk reduction returns between two and ten dollars in recovery savings. Building resilience to natural hazards requires an awareness of risk, a commitment by all stakeholders to make change happen, and a structured approach to funding and implementing effective measures for disaster risk reduction.   NOTE: This report is Phase 1 of the The Global Resilience Project. Phase 2: The Global Risk Map (interactive map resource) can be accessed in Related Content below
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