This article analyses the socioeconomic characteristics and trip attributes that influence or correlate with airline choice using a database of 20 000 passengers. One of the conclusions that should be highlighted is the lack of significance of socioeconomic variables except when the passenger is non-Spanish and the frequency with which one travels. And yet there are many trip attributes that condition the choice. Of these the following can be highlighted: the destination, the purpose, the need to transfer to another flight, the duration of the trip, the passenger's choice of accommodation or whether the trip is made on a weekend or not.
How can sea-level rise affect territory? Has territorial planning adjusted to this new situation? This paper analyses the possible ramifications of changes in tidal recurrence over the course of this century in a potentially vulnerable marsh environment, such as the Bay of Cádiz, in southern Spain, where sea-level rise is already a fact. For that purpose, the regionalisation criterion is used as a basis for adjusting the magnitude of global problems to subregional scale. Geographic information systems are applied to portray the forecasted territorial changes according to the RCP4.5 and RCP8.5 scenarios presented by the Intergovernmental Panel on Climate Change (IPCC) for the years 2050 and 2100. Projections of sea-level rise show that the tide is travelling farther inland, not just invading unoccupied areas of marshes and beaches but also reaching urban and productive areas. Estimates indicate that the floodable area could expand by more than 20% in 2050, with a further 2,000 ha of flooded areas added in 2100 for either of the two scenarios used. The occurrence of these changes, regardless of the model used, would therefore entail an alteration of the environmental, social, cultural and economic values and elements of the Bay of Cádiz, with the Natural Park being the most affected area. In response to these consequences, the need to apply the resulting projections to other variables is insisted on, with a view to introducing territorial management tailored to this new and already present reality. Application of the regionalisation criterion to study repercussions of the climate crisis in the Bay of Cádiz could serve as a precedent for the development of adaptation strategies in other marsh environments at subregional or local level.
El Guadaíra es un río que en su curso bajo ha experimentado diversas transformaciones, desde las intervenciones históricas en el río para la instalación de molinos de agua hasta las realizadas en el cauce desde principios del siglo xx para mitigar las inundaciones en la ciudad de Sevilla. Se realiza un análisis crítico y valoración de la Propuesta de Actuación denominada Anillo Verde del Guadaíra para la recuperación del espacio periurbano marginal vinculado a la última transformación encauzamiento del río en 1977. Se analiza y valora el alcance ecológico y social de esta propuesta a través de un análisis DAFO, con un objetivo claramente socio-ambiental que busca la sostenibilidad del área de intervención, que es analizada y discutida con otras experiencias nacionales e internacionales. En las conclusiones se destacan los errores relativos a las especies relacionadas con las formaciones vegetales de ribera mediterráneas, que es una de las debilidades más importantes de la propuesta. Se concluye que se adapta a los objetivos de la ENRR, pero no se adapta a los patrones académicos en base a la investigación en restauración de ríos y riberas.
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