511 resultados para Neologia,Forestierismi,Stampa,Cambiamento climatico


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Pós-graduação em Letras - FCLAS

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A partir del levantamiento realizado en cuatro países de la región (Argentina, Colombia, México y Uruguay), el presente documento examina las principales reformas y políticas de innovación y pymes realizadas en los últimos años. De este análisis se desprende la escasa vinculación que existe entre estos ámbitos de acción, lo que, dados los rets que enfrenta el mundo de hoy, deben ser vinculados más estrechamente con la sustentabilidad ambiental.

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En este documento, producto del programa de trabajo conjunto de la Comisión Económica para América Latina y el Caribe (CEPAL) y los Ministerios de Agricultura de los países miembros del Consejo Agropecuario Centroamericano del Sistema de Integración Centroamericana (SICA), coordinado con su Secretaría Ejecutiva (SECAC) y su Grupo Técnico de Cambio Climático y Gestión Integral de Riesgo, se estudia la relación de la temperatura y la precipitación y otras variables con los rendimientos en 95 unidades geográficas subnacionales productores del café en los siete países de Centroamérica en la década del 2000. Valiéndose del método de funciones de producción, se estiman los impactos potenciales del cambio climático sobre estos rendimientos durante el presente siglo, utilizando dos escenarios del Panel Intergubernamental de Cambio Climático (IPCC), una con una trayectoria de alza de emisiones menor (B2) y otra de emisiones crecientes e inacción global cercana a la trayectoria endencial actual (A2).

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.--I. Background and justification.--II. Critical issues in macroeconometric modelling in the Caribbean.--III. Critical issues in macroeconometric modelling in the Caribbean.--IV. Economic modelling to determine the impacts of climate change in the Caribbean.--V. Wrap up

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Tal vez el principal canal de transmisión de los impactos del cambio climático sobre las actividades económicas y humanas es a través de la disponibilidad de los recursos hídricos. Reconociendo la necesidad de generar políticas que permitan gestionar los riesgos que imponen las nuevas condiciones climáticas sobre los recursos hídricos desde los sectores público y privado, la Comisión Económica para América Latina y el Caribe (CEPAL), en conjunto con el International Development Research Centre (IDRC) de Canadá, el Programa CEPAL-BMZ/GIZ y la Cámara Internacional de Comercio (ICC), organizó los días 29 y 30 de octubre el Seminario “Recursos hídricos bajo incertidumbre y riesgo al cambio climático: herramientas para los tomadores de decisión del sectores público y privado” donde se expusieron y debatieron distintas propuestas de análisis e instrumentos económicos para la gestión del riesgo en el sector hídrico frente al cambio climático. Este documento, que reúne cuatro de los trabajos discutidos en el seminario, busca impulsar esta agenda de adaptación al cambio climático del sector hídrico considerando una gestión de riesgos apropiada.

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In this study, an attempt is made to assess the economic impact of climate change on nine countries in the Caribbean basin: Aruba, Barbados, Dominican Republic, Guyana, Jamaica, Montserrat, Netherlands Antilles, Saint Lucia and Trinidad and Tobago. A methodological approach proposed by Dell et al. (2008) is used in preference to the traditional Integrated Assessment Models. The evolution of climate variables and of the macroeconomy of each of the nine countries over the period 1970 to 2006 is analyzed and preliminary evidence of a relationship between the macroeconomy and climate change is examined. The preliminary investigation uses correlation, Granger causality and simple regression methods. The preliminary evidence suggests that there is some relationship but that the direction of causation between the macroeconomy and the climate variables is indeterminate. The main analysis involves the use of a panel data (random effects) model which fits the historical data (1971-2007) very well. Projections of economic growth from 2008 to 2099 are done on the basis of four climate scenarios: the International Panel on Climate Change A2, B2, a hybrid A2B2 (the mid-point of A2 and B2), and a ‘baseline’ or ‘Business as Usual’ scenario, which assumes that the growth rate in the period 2008-2099 is the same as the average growth rate over the period 1971-2007. The best average growth rate is under the B2 scenario, followed by the hybrid A2B2 and A2 scenarios, in that order. Although negative growth rates eventually dominate, they are largely positive for a long time. The projections all display long-run secular decline in growth rates notwithstanding short-run upward trends, including some very sharp ones, moving eventually from declining positive rates to negative ones. The costs associated with the various scenarios are all quite high, rising to as high as a present value (2007 base year) of US$14 billion in 2099 (constant 1990 prices) for the B2 scenario and US$21 billion for the BAU scenario. These costs were calculated on the basis of very conservative estimates of the cost of environmental degradation. Mitigation and adaptation costs are likely to be quite high though a small fraction of projected total investment costs.

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Caribbean policymakers are faced with special challenges from climate change and these are related to the uncertainties inherent in future climate projections and the complex linkages among climate change, physical and biological systems and socioeconomic sectors. The impacts of climate change threaten development in the Caribbean and may well erode previous gains in development as evidenced by the increased incidence of climate migrants internationally. This brief which is based on a recent study conducted by the Economic Commission for Latin America and the Caribbean (LC/CAR/L.395)1 provides a synthesis of the assessment of the economic and social impacts of climate change on the coastal and marine sector in the Caribbean which were undertaken. It provides Caribbean policymakers with cutting-edge information on the region’s vulnerability and encourages the development of adaptation strategies informed by both local experience and expert knowledge. It proceeds from an acknowledgement that the unique combination of natural resources, ecosystems, economic activities, and human population settlements of the Caribbean will not be immune to the impacts of climate change, and local communities, countries and the subregion as a whole need to plan for, and adapt to, these effects. Climate and extreme weather hazards related to the coastal and marine sector encompass the distinct but related factors of sea level rise, increasing coastal water temperatures, tropical storms and hurricanes. Potential vulnerabilities for coastal zones include increased shoreline erosion leading to alteration of the coastline, loss of coastal wetlands, and changes in the abundance and diversity of fish and other marine populations. The study examines four key themes in the analysis: climate, vulnerability, economic and social costs associated with climate change impacts, and adaptive measures.

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.--A call for greater cooperation and dialogue between Latin America and the Caribbean.--Latin America and the Caribbean urged to pursue avenues for integration.--ECLAC: Caribbean countries will be negatively affected by Climate Change.--Countries of Latin America and the Caribbean Seek a Regional Consensus on Sustainable Development.--UN-CARICOM Meeting Identifies Regional Priorities.--Latin America and the Caribbean region continues on growth path.--Exports from Latin America and the Caribbean will increase by 27% in 2011

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Caribbean Small Island Developing States are considered to be particularly vulnerable to external shocks that stem from changes in climate and the increase in frequency and magnitude of natural disasters. Quantification of the extent of vulnerability of these islands may be measured by the use of several indices including the Economic Vulnerability Index (EcVI), the Disaster Deficit Index (DDI), the Environmental Vulnerability Index (EVI) and the Social Vulnerability Index (SVI). The capacity to build resilience may be measured by the Economic Resilience Index (ERI). Of importance in the measurement of vulnerability and resilience is the impact on women and children. In order to reduce vulnerability and promote resilience, Caribbean SIDS are urged to develop adaptation strategies. Such strategies include the conduct of indepth studies on natural environmental impacts specifically in terms of biophysical and socio economic impacts. It is also necessary to review best practices in terms of preparedness, resilience building and climate change adaptation in other countries such as Cuba. Addressing vulnerability and building resilience requires appropriate information and data and priority should be given to addressing data gaps. It would also be expedient to classify vulnerability and resilience as regional public goods wherein one country’s benefit does not compromise another country’s ability to benefit. Finally, it is important to acknowledge that vulnerability is, in part, is a function of gender so that indicators need to be disaggregated to reflect the country-specific gendered socioeconomic situation.

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The present volume captures the results of the studies conducted during Phase 2 of the RECCC project to date. Chapter 1 provides the contextual framework within which the assessments were conducted and Chapter 2 focuses on the emissions scenarios as set out by the Special Report on Emissions Scenarios by the Intergovernmental Panel on Climate Change (IPCC). The results of the economic assessments of the impacts of climate change on the agricultural, coastal and marine, energy and transportation, health, freshwater resources and tourism sectors in the Caribbean subregion are presented in Chapters 3 to 9, respectively. The report concludes with an examination of adaptation strategies and key policy recommendations for policymakers, in Chapter 10.