Comenius:Solutions - Geographical aspects/Spain/Group 3

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Solutions to the effects of global warming on water management from a geographical point of view...proposed by

Es.gif Group 3

Group 3 is conformed by: Vicent: Marcelo, Mar Patricia, Nuria, Pedro



Sustainable urban growth

Proposal: A comprehensive study of the management and optimization of energy in an environment residential within a multi-year program for research, development and evaluation of the elements, techniques and strategies available.

  1. Low temperature thermal energy (Heating, air conditioning, hot water, etc..)
  2. Electricity, chemistry: Generation, storage and hydrogen generation
  3. Materials and construction processes for energy optimization: Insulation, thermal inertia. Phase change materials, etc..
  4. Design. construction and maintenance of quality, cost, benefits: Adaptation to the environment, industrialized construction, automation processes
  5. Housing development with target "zero energy": Projects under implementation


Immediate application of the renewable energies

The bio-petroleum renewable

The bio-petroleum renewable and his creator, Cristian Gomis


The biological oil, renewable and carbon dioxide absorbed in an endless cycle has been created by the company Bio Fuel System (BFS) in Alicante

Is the green algae, contains hundreds of millions of unicellular organisms per cubic milliliter, and it has taken years to several years with the scientific formula of growing in an artificial environment. Not surprisingly, behind the biofuel future are the departments of Biotechnology, Chemical and Marine Sciences at the Universities of Alicante and Valencia.

In these years we have selected some thirty families of algae strains to chlorophyte that has been fed with sunlight, CO2 and a pinch of phosphorus and nitrogen. The result has been that these artificial conditions best, with no extreme changes in temperature or currents or predators, have accelerated their life processes and reproductive rights. If the marine environment, the concentration of these beings is 300 in a cubic milliliter, in the BFS system reaches 200 million. Every day the hundreds of thousands of millions of people are divided into two every 12 hours. Thus biomass is served.

The bio-petroleum BFS has the black color of crude and has no sulfur or heavy metals to be incorporated into their fossilization. Organic matter is only cellulose and silicon membrane.

Every day, milking the cylinder removing half of it is centrifuged, the water is returned to the tank so that double the number of individuals in the next 24 hours and is the organic matter in pulp refining or dry coal .

In BFS achieve that in every two cubic meters of water, produced six kilos per day of biomass. This is thousands of times more than the annual crop of soybean, sunflower and palm, using much less land and less aggressively.

Strategies to adapt to rising sea levels

Coastal management strategies applicable to climate change to adapt to repeated sea-level rise or a change in the pattern of storms, would be: the rollback, adaptation and defense.

Rollback strategy: this strategy, as its name suggests, is to roll back human structures that may be affected by the effects of rising sea levels and other consequences of climate change. It requires, first,to provide space to relocate the uses and resources that support the coastal section. If available, this strategy is more consistent with climate change at regional scale, and it doesn't mortgage the area in the future.

For example, if the beaches are not confined the generally more advisable strategy is receding, as this is the natural behavior to expect in the beaches and associated dune fields. To make this strategy it would be necessary to enact a land use rules that prevent the installation of new components or activities in vulnerable areas.

In the case of soft cliffs on the rollback strategy, to let nature take its course would have similar implications to those described above for beaches. Also here you will have to define the potentially affected areas, making inventories and valuations of existing assets, limitations in use in certain areas and provide for the abandonment of buildings, etc..

For wetlands and similar areas the rollback strategy is the most appropriate in many cases because it will maintain the same total length. In other cases the inland migration of wetlands is impossible becuase of the presence of barriers of various kinds. In some cases there is no alternative and the final result is a reduction in the extent of wetlands, which will be totally or partially submerged. In other cases it is possible to eliminate the barriers (for example in areas that have simply been closed and dried), thereby facilitating migration and / or regeneration of areas previously occupied by wetlands.

Adaptation strategy: It requires a different approach to erosion and flooding.In the first case, the fighting strategy against erosion requires to relocate structures and to make a flexible use of the coastline. Currently the most common tendency consits in the use of a support vegetation and dissipation that reduces the risk of erosion. In the second case, the risks and costs associated to the process of flooding can be predicted. We can't forget that the flood defenses require continued thereby maintenance.

The defense strategy:It consists in building structures to defend or preserve certain human infraestructures from the rising sea level and other effects of climate change. Although this is the strategy that seems to prefer the society for its appearance “aparently” monolitic against erosion or flooding, implies high initial costs and a strong maintenance costs, as, for example, the history of defense and security structures illustrate the Maresme coast.

Also, we can't consider only one permanent solution to all the problems related with the climate change and its effects on the coast. Because of that, this defense strategy can only be considered for specific stretches of coast, and always reminding the time factor. The bes solution for any selectioned time scale consists in the combination of the three adaptation elements, and all within the framework of a comprehensive plan of the coastal zone.



Geographical aspects


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Economical aspects


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Social aspects


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Political aspects


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