Figure 1 - uploaded by Bjørn Petter Jelle
Content may be subject to copyright.
Contexts in source publication
Context 1
... typical for the space shuttle. Medium duration missions last from several weeks to several months and are typical onboard the International Space Station (ISS) and the defunct MIR station. In space stations today, food is brought from Earth whereas water used for all activities except oxygen generation is recycled and fed back to the system (see Fig. 1). Solid wastes and wastes from the air filtration system are not recycled and exit the station. Long duration manned space missions have been extensively studied for missions to Mars or permanent settlements on the Moon, but have not yet taken place. Various concepts were studied, most of them relying on material-closed bioregenerative ...
Context 2
... level of closure within Biosphere 2 was much higher than in the ISS. Whereas the ISS vents out CO 2 and H 2 (see fig.1) and sends back to Earth detritus and by-products of atmosphere filtration, the Biosphere 2 was created in the sustainable perspective of a closed system where wastes may not build up and everything needs to be recycled. ...
Similar publications
Por sus características y cualidades naturales, belleza, tamaño, dureza y variedad de color, así como por los distintos hábitats en que se encuentran, tanto acuáticos como terrestres, el uso que han tenido los moluscos ha sido muy amplio. Uno de estos usos y tal vez el más
difundido y estudiado ha sido el ornamental, sin embargo las características...
Citations
What happens if resources get scarce? People are very fast changing to local and reliable solutions. Look at Greece today: Jobless people are moving out of Athens, to start living with parents or family in the countryside: It's the best option to save money and have the most important resource secured: water and food. It shows energy is not their most urgent problem, in fact you could say CO2 emissions are no issue anymore, but food and water are the most precious resources. In this paper we explore the importance of resources relative to each other, to be able to evaluate the findings and develop a set of priorities and rules to deal with in restructuring our resource use. Examples in the paper show that there is a strong relation between different resources and uses of these in order of importance.
This leads to a proposal for a new approach in assessing resources: ranking instead of weighting.
In times of stress, either in income or availability of goods or resources, choice protocols will have to change according to scarcity and availability of resources. It is expected that stress will be experienced in many resources, starting with fossil fuels, accompanied by several materials resources and even fertilisers. These are all also related to the availability of land to produce alternatives (in renewable energy and materials and food.)
Resulting from this is the notion that in times of stress, communities and cities should have urgency plans ready to make rapid choices in preference for resources to maintain availability, and hence to maintain a basic level of survival.
