Los humedales ante el cambio climático

Investigaciones Geográficas 01/2005; 37. DOI: 10.14198/INGEO2005.37.07
Source: OAI


El presente trabajo, forma parte de una conferencia impartida en el Simposio Internacional Humedales 2003. Ciénaga de Zapata. Matanzas. Cuba Las emisiones antropogénicas y naturales a la atmósfera, al aumento de concentración de gases de efecto invernadero, el calentamiento global, el cambio climático y el cambio global son hoy situaciones muy preocupantes para la comunidad científica internacional. Las vulnerabilidades, los impactos y las medidas de adaptación a escenarios futuros del clima, son una prioridad para la que ya vienen trabajando científicos y especialistas. Los humedales, ecosistemas con vulnerabilidad natural a los embates del clima, según el tercer informe del IPCC, han sido poco estudiados en su relación con el cambio del clima. Recientemente Ramsar ha solicitado al IPCC el desarrollo de un informe técnico sobre la relación de los humedales y el cambio climático, sin embargo, existe hoy una gama de conocimientos, que a pesar de las incertidumbres, permite tener un acercamiento a la acción del cambio climático sobre los humedales. En el presente estudio se muestra un análisis preliminar sobre vulnerabilidades, impactos y medidas de adaptación de los humedales al cambio climático. Natural and antropogenic emissions to the atmosphere, the growth of the green house gases concentration, global warming, climate and global change are today , one of the most important situations to be worried about by the international scientist community. The vulnerability, impacts and adaptation measures to future climate scenarios, are the priority goal for scientist and specialist working on it. The wetlands, ecosystems with natural vulnerability to the impact of climate, according to third Report of IPCC, have been low level studied in its interaction with the climate change. Recently, Ramsar asked to IPCC the develop of technical report about the relationship existing between wetlands and climate change, however, there is a stock of knowledge, although uncertainty, give the chance to know about the climate change impacts to the wetlands. The current study shows a preliminary analyse about vulnerability, impacts and adaptation of the wetlands to the climate change.

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    ABSTRACT: We have systematized the effects associated with climate change on urban spaces in Chile reported between 2000 and 2012. The method was based on a review of scientific articles in three databases (Scopus, Web of Knowledge and Scielo) using 32 keywords. Only 14 research papers were found related to climate change in urban spaces, most of which were case studies focused on the capital, Santiago. The main effects on urban spaces were found in four areas: (1) increase in temperature (heat islands, heat waves), (2) health problems in vulnerable populations (cardiac complications, heat stroke, and respiratory diseases), (3) increased demand for water, and (4) damage to the urban infrastructure with resulting risk to the population. In these circumstances the following measures are needed: (1) effective incorporation of the potential impacts of climate change into territorial planning instruments, (2) increased green areas to mitigate the impact of heat waves, (3) limiting of housing or public services in areas at risk, (4) encouraging the design of adaptation plans by involving the vulnerable population, and (5) implementing water conservation measures. We conclude that climate change is causing effects in urban areas that should be considered in the design and expansion of cities.
    Full-text · Article · Dec 2013 · Atmosfera