Video Experimental Relacionado

Updated: Feb 10, 2026

Author Spotlight: Unveiling Mechanisms of Stress Resilience - Significant Findings, Advancements, and Future Research

Author Spotlight: Unveiling Mechanisms of Stress Resilience - Significant Findings, Advancements, and Future Research

Published on: December 15, 2023

Amenazas globales a la seguridad hídrica humana y a la biodiversidad de los ríos

C J Vörösmarty¹, P B McIntyre, M O Gessner

¹The Environmental CrossRoads Initiative, City University of New York, The City College of New York, New York, New York 10035, USA. contact@riverthreat.net

|October 1, 2010

Resumen

La seguridad hídrica global está amenazada para el 80% de las personas y el 65% de la biodiversidad de agua dulce debido a múltiples factores estresantes. Abordar las causas profundas de las amenazas del agua es crucial tanto para el bienestar humano como para el ecológico.

Área de la Ciencia:

Ciencias del medio ambiente Ciencias del medio ambiente.
Ecología Global Ecología Global.
Gestión de los recursos hídricos Gestión de los recursos hídricos

Sus antecedentes:

Los recursos de agua dulce son vitales para las poblaciones humanas y la biodiversidad.
La evaluación de las amenazas a la seguridad hídrica requiere un enfoque a múltiples escalas que considere tanto las necesidades humanas como las ecológicas.
Las evaluaciones existentes a menudo carecen de una visión integral de los factores estresantes acumulativos y los impactos posteriores.

Objetivo del estudio:

Realizar la primera síntesis mundial de las amenazas a la seguridad hídrica, integrando las perspectivas humanas y de la biodiversidad.
Desarrollar y aplicar un marco espacial que cuantifique múltiples factores estresantes y los impactos posteriores en la seguridad hídrica.
Identificar patrones globales de amenazas a la seguridad hídrica e informar las políticas y estrategias de gestión.

Principales métodos:

Utilizó un nuevo marco espacial para cuantificar múltiples factores estresantes relacionados con el agua.
La exposición integrada de la población humana y la vulnerabilidad del hábitat de la biodiversidad de agua dulce.
Teniendo en cuenta los impactos posteriores del uso de los recursos hídricos y la contaminación.

Principales resultados:

Casi el 80% de la población mundial se enfrenta a altas amenazas a la seguridad hídrica.
Las naciones ricas pueden mitigar los impactos de los factores estresantes a través de la tecnología, pero no abordan las causas profundas.
Los hábitats para el 65% de la descarga de agua dulce continental están moderadamente a altamente amenazados.
Las naciones menos ricas siguen siendo desproporcionadamente vulnerables a la inseguridad hídrica.

Conclusiones:

Un marco de amenazas acumuladas es esencial para priorizar las intervenciones de seguridad hídrica.
Abordar las amenazas en su origen es más eficaz que la costosa remediación de los síntomas.
Se necesita una acción global urgente para garantizar la seguridad del agua tanto para los seres humanos como para los ecosistemas de agua dulce.

Más Videos Relacionados

Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies

Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies

Published on: July 1, 2016

Using the Threat Probability Task to Assess Anxiety and Fear During Uncertain and Certain Threat

Using the Threat Probability Task to Assess Anxiety and Fear During Uncertain and Certain Threat

Published on: September 12, 2014

Videos de Conceptos Relacionados

Threats to Biodiversity

Threats to Biodiversity

There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...

Biodiversity and Human Values

Biodiversity and Human Values

Human civilization relies on biodiversity in many ways. Sudden changes in species biodiversity result in environmental changes that can modify weather patterns and therefore human civilizations.

What is Biodiversity?

What is Biodiversity?

Biodiversity describes the variety of living things at multiple organizational levels: genetic, species and ecosystem diversity. Species diversity includes all branches of the evolutionary tree from single-celled prokaryotic organisms, bacteria, and archaea, to the eukaryotic kingdoms: plants; animals; fungi; and protists. To date, there have been about 1.75 million species identified, and new species are discovered every week.

Stereotype Threat and Self-fulfilling Prophecies

Stereotype Threat and Self-fulfilling Prophecies

When we hold a stereotype about a person, we have expectations that he or she will fulfill that stereotype. A self-fulfilling prophecy is an expectation held by a person that alters his or her behavior in a way that tends to make it true. When we hold stereotypes about a person, we tend to treat the person according to our expectations. This treatment can influence the person to act according to our stereotypic expectations, thus confirming our stereotypic beliefs. Research by Rosenthal and...

Global Climate Change

Global Climate Change

Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.

Role of Water in Human Biology

Role of Water in Human Biology

Water is the one of the most significant components of the human body; it plays a crucial role in several physiological activities because of its unique physicochemical properties. Importantly, it helps to regulate body temperature and is the chief component of several body fluids.
Water's Solvent Properties
Since water is a polar molecule with slightly positive and slightly negative charges, ions and polar molecules can readily dissolve in it. Therefore, it is referred to as a solvent, a...