Climate change and hydrology

This book chapter summarises the evolution of research into climate change and hydrology at the NERC Centre for Ecology and Hydrology, Wallingford.

The medieval climate anomaly and Byzantium: a review of the evidence on climatic fluctuations, economic performance and societal change

At the beginning of the Medieval Climate Anomaly, in the ninth and tenth century, the medieval eastern Roman empire, more usually known as Byzantium, was recovering from its early medieval crisis and experiencing favourable climatic conditions for the agricultural and demographic growth. Although in the Balkans and Anatolia such favourable climate conditions were prevalent during the eleventh century, parts of the imperial territories were facing significant challenges as a result of external political/military pressure. The apogee of medieval Byzantine socio-economic development, around AD 1150, coincides with a period of adverse climatic conditions for its economy, so it becomes obvious that the winter dryness and high climate variability at this time did not hinder Byzantine society and economy from achieving that level of expansion. Soon after this peak, towards the end of the twelfth century, the populations of the Byzantine world were experiencing unusual climatic conditions with marked dryness and cooler phases. The weakened Byzantine socio-political system must have contributed to the events leading to the fall of Constantinople in AD 1204 and the sack of the city. The final collapse of the Byzantine political control over western Anatolia took place half century later, thus contemporaneous with the strong cooling effect after a tropical volcanic eruption in AD 1257. We suggest that, regardless of a range of other influential factors, climate change was also an important contributing factor to the socio-economic changes that took place in Byzantium during the Medieval Climate Anomaly. Crucially, therefore, while the relatively sophisticated and complex Byzantine society was certainly influenced by climatic conditions, and while it nevertheless displayed a significant degree of resilience, external pressures as well as tensions within the Byzantine society more broadly contributed to an increasing vulnerability in respect of climate impacts. Our interdisciplinary analysis is based on all available sources of information on the climate and society of Byzantium, that is textual (documentary), archaeological, environmental, climate and climate model-based evidence about the nature and extent of climate variability in the eastern Mediterranean. The key challenge was, therefore, to assess the relative influence to be ascribed to climate variability and change on the one hand, and on the other to the anthropogenic factors in the evolution of Byzantine state and society (such as invasions, changes in international or regional market demand and patterns of production and consumption, etc.). The focus of this interdisciplinary

Climate change and energy use : The role for anthropological research

The expression 'global climate change' no longer designates merely a discourse on possible future risks; today it us used as a shorthand for specific ongoing events that are having a serious impact on the lives of people around the world. In the light of this change and consequent efforts to limit carbon dioxide emissions, contributions from social scientists are increasingly in demand within the study of energy use. My concern here is not whether intervention is a proper role for anthropologists, but rather how we may position ourselves within energy- and climate-related research.

Climate Change and its Effects on Polar Bears

Polar bears are key indicators of the effects of climate change on the arctic ecosystem, because their existence is directly related to the sea ice habitat, where they hunt. As the Arctic continues to warm, their habitat will be reduced further and local extinction is likely to occur, especially in southern populations.

Impacts of Climate Change and the End of Deforestation on Land Use in the Brazilian Legal Amazon

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Homogeneity assessment of a station climate series (1933-2005) in the Metropolitan Area of São Paulo: instruments change and urbanization effects

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Sustainable development 20 years on from the earth summit: progress, gaps and strategic guidelines for Latin America and the Caribbean

Includes bibliography

Climate change in Latin America: impacts and mitigation policy options

Includes bibliography.

The global context and the renewal of the United Nations = El contexto global y la renovación de Naciones Unidas

Introducción En esta época posterior a la guerra fría y de creciente globalización, el rol de las Naciones Unidas experimenta constantes redefiniciones y desafíos. El señor Kofi Annan, Secretario General, afirmó que las Naciones Unidas se encuentran hoy en una encrucijada, y que el momento es tan trascendente como lo fue el de su fundación, hace sesenta años. Aunque los principios fundamentales de la democracia, los derechos humanos y el estado de derecho siguen siendo universalmente aceptados y se consideran piedra angular del orden mundial, el Secretario General considera, como otros muchos, que ha llegado el momento de rediseñar su estructura básica para combinar el imperativo de la acción con la necesidad de legitimidad". En este contexto, durante la visita oficial del Secretario General a Chile en noviembre del 2003, la Comisión Económica para América Latina y el Caribe (CEPAL) fue anfitriona de la mesa redonda "El contexto global y la renovación de las Naciones Unidas", en la que participaron la señora Tarja Halonen, Presidenta de la República de Finlandia, el señor Ricardo Lagos, Presidente de la República de Chile, y el señor Annan. Entre los invitados a este acto se encontraban miembros del cuerpo diplomático en Santiago de Chile, destacados intelectuales, representantes de la sociedad civil y académicos que enriquecieron el debate con preguntas y comentarios. Los tres líderes analizaron la situación política, económica y social del mundo de hoy en el contexto del actual proceso de reforma de las Naciones Unidas. Disertaron sobre los desafíos del desarrollo, el multilateralismo, la interdependencia de los países y su necesidad de contar con una participación ciudadana creciente y coherente en los planos local, regional y mundial. Uno de los temas centrales fue el poder, y el modo en que las Naciones Unidas pueden canalizarlo y redistribuirlo con el fin de que su ejercicio sea colectivo y civilizado. Aunque es imposible resolver en una mañana o en una sola reunión estos complejos asuntos, que en ocasiones resultan abrumadores, tenemos la esperanza de que este libro proporcione inspiración, conceptos e ideas que permitan alcanzar soluciones eficaces e innovadoras en el futuro. José Luis Machinea Secretario Ejecutivo CEPAL"

Latin America and the Caribbean and the European Union: striving for a renewed partnership

Includes bibliography

Towards a new international financial architecture: report of the Task Force of the Executive Committee on Economic and Social Affairs of the United Nations, 21 January 1999 = Hacia una nueva arquitectura financiera internacional: informe del Grupo de Trabajo del Comité Ejecutivo de Asuntos Económicos y Sociales de las Naciones Unidas, 21 de enero de 1999

Publicación bilingüe

International migration from a regional and interregional perspective: Main conclusions, messages and recommendations from the United Nations Development Account project (6th Tranche), "Strengthening national capacities to deal with international migration: maximizing development benefits and minimizing negative impact"

Incluye bibliografía

Finding solutions to the debt problems of developing countries: report of the Executive Committee on Economic and Social Affairs of the United Nations (New York, 20 May 1999)

Includes bibliography

Social dimensions of macroeconomic policy: report of the Executive Committee on Economic and Social Affairs of the United Nations

Introduction The social agenda is long-term in nature, in the sense that poverty alleviation along with a better distribution of income, wealth and opportunities are long-term goals. A sound macroeconomic policy, on the other hand, has to do largely with the consistent management of short-term policy instruments pursuing a sustainable and predictable pace for aggregate economic variables and major prices (wages, inflation, interest rates and exchange rates). In spite of the different arena and rationale in which they play, there are strong links between the two. First and most obvious, macroeconomic adjustment and structural reform are more likely to be sustainable when they are equitable. Second, social intervention —i.e., policies, programmes and reforms aimed at improving social performance in the long run—, needs stable funding which is not always available in view of macroeconomic constraints. Third, macroeconomic instability —especially episodes of recession or hyperinflation— increases poverty and inequality, while restoring macroeconomic equilibrium does not restore previous social balances. Finally, there is no unique macroeconomic policy mix to tackle a given situation, and the policy options may not be neutral from a social standpoint. Monetary, fiscal and exchange rate policies, together with structural reform, have major consequences for the social wellbeing of societies, not only in terms of protection against shocks and crises but also in terms of equity. Many, if not all, of the necessary social policies are of a domestic nature. This report thus concentrates on domestic strategies aimed at maximizing the linkages between consistent macroeconomic policies and social progress. Pursuing them, however, depends to a considerable extent on the international enabling environment in which the global financial system, the unsettled debt crisis and increasing ODA flows play a significant role. Countries operate in a world economy where market players everywhere immediately scrutinize domestic monetary, financial or fiscal policy decisions and the performance of exchange rate regimes of individual countries. Under these conditions, the room for manoeuvre of policymakers has become considerably constrained. Consequently, it is becoming increasingly complex to incorporate the social dimensions into such policy decisions, to the extent that external analysts consider that authorities are sacrificing sound macroeconomic policies. The main message of the report is that the expediency of short-term economic efficiency as embedded in much of the advice on macroeconomic stability needs to be tempered by long-term development objectives. The report starts with a short historical background which describes the ascendancy of macroeconomic policies over social development policies (chapter I). It continues with an evaluation of the relation between macroeconomic consistency and social effort (chapter II), and the importance of sustainable and stable growth for social progress (chapter III). The report then turns to the need for an equity-enhancing growth strategy (chapter IV) and an analysis of the priorities of social policies in an integrated approach to growth (chapter V). The final chapter adds some final institutional remarks.