Search results for "Environmental crisis"
showing 5 items of 5 documents
Le due crisi: crisi del capitalismo e crisi ambientale. Una soluzione sostenibile?
2015
Le due crisi in titolo sono due facce di una stessa medaglia; e il tema verrà trattato su questa rivista in due parti divise solo al fine di agevolare la lettura. Nella Parte I si evidenzia come la crisi ambientale derivi dal generale rapporto di predazione e spoliazione delle risorse naturali, caratteristico del modo capitalistico di produzione e consumo; ancor più devastante nella sua attuale fase “iperliberista”. I danni sociali della crisi economica sono drammaticamente evidenti alla maggior parte dell’opinione pubblica – la critica alle attuali teorie e modelli economici sarà oggetto della Parte II – mentre le altrettanto drammatiche conseguenze della crisi ambientale faticano a diveni…
Biogeographic patterns of belemnite body size responses to episodes of environmental crisis
2019
Body size changes have been investigated through episodes of environmental crisis among several groups of organisms but the relative contribution of within-lineage size changes, selective extinction and origination of taxa on these patterns is still being debated. Rapid warming, anoxia, and perturbations of the carbon cycle linked with volcanic activity, as well as their impact on marine diversity are well documented for the Pliensbachian-Toarcian (Pli-Toa) boundary and for the Toarcian Oceanic Anoxic Event (T-OAE). Belemnites were a very abundant and successful cephalopod group in the Mesozoic oceans playing a paramount role in the oceanic trophic webs. Belemnites have mainly been studied …
Justicia ecológica: la propuesta del Papa Francisco frente a la crisis ambiental
2016
La crisis ecológica ha sido objeto de la atención prioritaria por parte del papa Francisco desde el inicio de su pontificado en 2013 hasta el momento. En mayo de 2015 publicó la Encíclica Laudato si’ sobre el cuidado de la casa común, la primera en el magisterio social de la Iglesia católica íntegramente dedicada a las relaciones del ser humano con la naturaleza. Este trabajo trata de sintetizar los aspectos fundamentales de la enseñanza del papa Francisco sobre la crisis ecológica, que constituye una denuncia profética de la degradación ambiental y la exclusión social que el ser humano está llevando a cabo, y que debe ser combatida con urgencia mediante la conversión personal y la transfor…
Lead isotopic fingerprint in human scalp hair: The case study of Iglesias mining district (Sardinia, Italy)
2017
The Sulcis-Iglesiente district (SW Sardinia, Italy) has been, until recently, one of the most important Italian polymetallic mining areas for the extraction of lead. Epidemiological studies conducted over several decades have indicated this site at high risk of environmental crisis with possible adverse effects on the public health. In the present paper we discuss Pb isotope signatures in human scalp hair and road dust collected from the Sulcis-Iglesiente area in order to trace the exposure of populations to potential Pb sources. A total of 23 determinations (20 on hair samples and 3 on road dust samples) of lead isotope ratios (206Pb/207Pb and 208Pb/206Pb) were carried out. The obtained re…
Dominating, Protecting, Creating. A Philosophical Essay about Utopianist Attitudes
2017
La cuestión medioambiental acapara cada día la atención internacional y condiciona en buena medida las fantasías condenatorias de la sociedad actual. Persistentemente se nos anuncian finales del mundo y escenarios apocalípticos brotados de la venganza de la naturaleza, víctima, se cuenta, del progreso irresponsable y devastador del ser humano. En este artículo pretendemos reflexionar filosóficamente en torno a los impactos de la acción humana sobre el mundo físico adoptando como objeto de estudio las actitudes de la utopía ante la naturaleza. Nuestra intención principal es la de sugerir una aproximación utopista a los problemas ecológicos que haga frente, por igual, a las contraindicaciones…