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Boletín de Población de las Naciones Unidas
Fecundidad por debajo del Nivel de Reemplazo
La División de Población del Departamento de Asuntos Económicos y Sociales de la Secretaría de las Naciones Unidas organizó el 4 al 6 de noviembre de 1997 una reunión de expertos para estudiar los...
La División de Población del Departamento de Asuntos Económicos y Sociales de la Secretaría de las Naciones Unidas organizó el 4 al 6 de noviembre de 1997 una reunión de expertos para estudiar los...
Boletín de Población de las Naciones Unidas
Respuestas Normativas Aplicables al Envejecimiento y la Disminución de la Población
La División de Población del Departamento de Asuntos Económicos y Sociales de la Secretaría de las Naciones Unidas organizó una reunión de expertos para debatir respuestas normativas aplicables al...
La División de Población del Departamento de Asuntos Económicos y Sociales de la Secretaría de las Naciones Unidas organizó una reunión de expertos para debatir respuestas normativas aplicables al...
Boletín de Población de las Naciones Unidas 2002
Perspectivas de Descenso de la Fecundidad en los Países con Fecundidad Elevada
La población mundial ha alcanzado un total de 6.000 millones de personas al comienzo del nuevo milenio, y las proyecciones demográficas indican que el crecimiento futuro hasta el año 2050 será...
La población mundial ha alcanzado un total de 6.000 millones de personas al comienzo del nuevo milenio, y las proyecciones demográficas indican que el crecimiento futuro hasta el año 2050 será...
Boletín de Población de las Naciones Unidas
Arreglos Residenciales de las Personas de Edad - Edición Especial
La División de Población del Departamento de Asuntos Económicos y sociales de la Secretaría de las Naciones Unidas, con el apoyo financiero del United States National Institute on Aging, organizó una...
La División de Población del Departamento de Asuntos Económicos y sociales de la Secretaría de las Naciones Unidas, con el apoyo financiero del United States National Institute on Aging, organizó una...
African Elephant, The
This publication discusses the scientific background of the African elephant and the effect of the ivory trade on its endangered population. A chapter on the counting of elephants provides the reader...
This publication discusses the scientific background of the African elephant and the effect of the ivory trade on its endangered population. A chapter on the counting of elephants provides the reader...
Urban Air Pollution
The value of this volume is the summary of the GEMS/Air assessment on the levels and effects of five of the most common and ubiquitous air pollutants: sulphur dioxide, nitrogen oxides, carbon monoxide...
The value of this volume is the summary of the GEMS/Air assessment on the levels and effects of five of the most common and ubiquitous air pollutants: sulphur dioxide, nitrogen oxides, carbon monoxide...
Contamination of Food, The
The data in this fifth volume in the series of the UNEP/GEMS Environment Library provide a picture of levels and trends of food contamination over much of the globe. Contaminants such as lead, cadmium...
The data in this fifth volume in the series of the UNEP/GEMS Environment Library provide a picture of levels and trends of food contamination over much of the globe. Contaminants such as lead, cadmium...
Freshwater Pollution
Polluted water has the potential for becoming a global threat. The GEMS assessment provides the first global picture of the state of much of the world's freshwater resources. It outlines the critical...
Polluted water has the potential for becoming a global threat. The GEMS assessment provides the first global picture of the state of much of the world's freshwater resources. It outlines the critical...
Impact of Ozone-Layer Depletion, The
This volume deals with the effects of ozone depletion on human health and the environment, and outlines ways of reducing damage to the ozone layer. It discusses the effects of ultraviolet radiation on...
This volume deals with the effects of ozone depletion on human health and the environment, and outlines ways of reducing damage to the ozone layer. It discusses the effects of ultraviolet radiation on...
El Niño Phenomenon, The
This technical document, written to be easily understood by those without technical qualifications, deals with the phenomenon of El Niño as it effects a reversal in the direction of winds and oceans...
This technical document, written to be easily understood by those without technical qualifications, deals with the phenomenon of El Niño as it effects a reversal in the direction of winds and oceans...
Glaciers and the Environment
Glaciers are important to the environmental health of the planet especially in the regulation of the Earth's heat balance. This volume presents the background and behaviour of glaciers, as they can be...
Glaciers are important to the environmental health of the planet especially in the regulation of the Earth's heat balance. This volume presents the background and behaviour of glaciers, as they can be...
Impact of Climate Change, The
This volume summarizes the current state of knowledge on climate change and its possible consequences. It draws together scientific research on the enhanced greenhouse effect, global warming and...
This volume summarizes the current state of knowledge on climate change and its possible consequences. It draws together scientific research on the enhanced greenhouse effect, global warming and...
Global Biodiversity
Biodiversity describes the diversity of life on Earth encompassing all species of plants, animals and micro-organisms, their genetic material and the ecosystems of which they are part. This volume...
Biodiversity describes the diversity of life on Earth encompassing all species of plants, animals and micro-organisms, their genetic material and the ecosystems of which they are part. This volume...
Pollution of Lakes and Reservoirs, The
Good management of the world's freshwater resources depends on understanding their value and the major problems confronting them. This publication documents the state of the world's lakes and...
Good management of the world's freshwater resources depends on understanding their value and the major problems confronting them. This publication documents the state of the world's lakes and...
Impacts of Climate on Fisheries, The
This volume summarizes the potential implications of climate change and variability on fisheries and on the societies that depend on them. It is based on a review of several fisheries case studies and...
This volume summarizes the potential implications of climate change and variability on fisheries and on the societies that depend on them. It is based on a review of several fisheries case studies and...
Water Quality of World River Basins
Contributing to the scientific investigation of global water resources, this publication summarizes the results of analysis and interpretation for 82 major river basins around the world. It is...
Contributing to the scientific investigation of global water resources, this publication summarizes the results of analysis and interpretation for 82 major river basins around the world. It is...
Groundwater
A Threatened Resource
It is urgent that we protect our groundwater supplies with diligence and that everyone understands the importance of doing so. This publication is intended to explain to all readers how important...
It is urgent that we protect our groundwater supplies with diligence and that everyone understands the importance of doing so. This publication is intended to explain to all readers how important...