La situación actual de crisis multidimensional (económica, ecológica y social) obliga, más que nunca, a organizar la vida económico-social de otra forma, a emprender un camino socioeconómico alternativo. Para analizar ese camino, esa transición de sistema, en este artículo se plantean...

The aim of this article is to analyse the physical and ecological limits of biofuels (in particular, ethanol). To this end, three aspects are discussed. First of all, the territorial element, i.e., the real productivity of energy crops (in particular, ethanol), to show that, in general, the...

The progressive reduction of high-quality-easy-to-extract energy is a widely recognized and already ongoing process. Although depletion studies for individual fuels are relatively abundant, few of them offer a global perspective of all energy sources and their potential future developments, and...