861 resultados para Environmental values in a globalising world
Resumo:
The manufacturing sector is leaving the West for Asia’s low wages and good working culture. Europe would be better off keeping these manufacturing activities, slowing down wage inflation and what is more, letting a young, cheaper workforce from the East settle down within their borders. This would aid in preserving the diverse economic structure which has been characteristic for Europe.Beside the economic growth there are two more concepts which have turned into the “holy cows” of economics during the last fifty years. One is the need to constantly improve labor productivity and the other is increasing competitiveness of nations. The high labor productivity of some countries, induces severe unemployment in the globalized world. In the other hand it is high time we understood that it is not competition, but cooperation that brings more happiness to humanity.Should we still opt for “happiness” and “sanity”, it is quite obvious that we all should, in economists’ terms, define our individual welfare functions corresponding to our own set of values, staying free from the influence of media, advertisements and fashion. The cornerstone to all this is the intelligent citizen who prefers local goods and services.
Resumo:
Globalization is eroding the livelihoods of small farmers, a significant and vulnerable class, particularly in the developing world. The cost-price squeeze stemming from trade liberalization places farmers in a race to the bottom that leads to displacement, poverty, and environmental degradation. Scholars and activists have proposed that alternative trade initiatives offer a unique opportunity to reverse this trend by harnessing the power of the markets to reward producers of goods with embedded superior cultural, environmental, and social values. Alternative trade via certification schemes have become a de facto prescription for any location where there is a need to conciliate economic interest with conservation imperatives. Partnerships among commodity production farmers, elite manufacturers and wealthy northern consumers/activists do not necessarily have win-win outcomes. Paradoxically, the partnerships of farmers with external agencies have unexpected results. These partnerships develop into dependent relationships that become unsustainable in the absence of further transfers of capital. The institutions born of these partnerships are fragile. When these fledging institutions fail, farmers are left in the same situation that they were before the partnership, with only minor improvements to show after spending considerable amounts of social and financial capital. I hypothesize that these failures are born out of a belief in a universal understanding of sustainability. A discursive emphasis on consensus, equity and mutual benefit hides the fact that what for consumers it is a matter of choice, for producers is a matter of survival. The growth in consumers’ demand for certified products creates a race for farmers to meet these standards. My findings suggest that this race generates economically perverse effects. First, producers enter into a certification treadmill. Second, the local need for economic sustainability is ignored. Third, commodity based alternative trade schemes increase the exposure of communities to global shocks. I conclude by calling for a careful reassessment of sustainable development projects that promote certification schemes. The designers and implementers of these programs must include farmers’ agenda in the planning of these programs.
Resumo:
We reconstruct the latest Paleocene and early Eocene (~57-50 Ma) environmental trends in the Arctic Ocean and focus on the Paleocene-Eocene thermal maximum (PETM) (~55 Ma), using strata recovered from the Lomonosov Ridge by the Integrated Ocean Drilling Program Expedition 302. The Lomonosov Ridge was still partially subaerial during the latest Paleocene and earliest Eocene and gradually subsided during the early Eocene. Organic dinoflagellate cyst (dinocyst) assemblages point to brackish and productive surface waters throughout the latest Paleocene and early Eocene. Dinocyst assemblages are cosmopolitan during this time interval, suggesting warm conditions, which is corroborated by TEX86'-reconstructed temperatures of 15°-18°C. Inorganic geochemistry generally reflects reducing conditions within the sediment and euxinic conditions during the upper lower Eocene. Spectral analysis reveals that the cyclicity, recorded in X-ray fluorescence scanning Fe data from close to Eocene thermal maximum 2 (~53 Ma, presence confirmed by dinocyst stratigraphy), is related to precession. Within the lower part of the PETM, proxy records indicate enhanced weathering, runoff, anoxia, and productivity along with sea level rise. On the basis of total organic carbon content and variations in sediment accumulation rates, excess organic carbon burial in the Arctic Ocean appears to have contributed significantly to the sequestration of injected carbon during the PETM.
Resumo:
Toxic metals are part of the most important groups of environmental pollutants that can bind to vital cellular components and interfere with their functions via inhalation, foods, water etc. The serum levels of toxic metals (lead, mercury, cadmium and arsenic) in pregnant women with history of pregnancy complications, pregnant women without history of pregnancy complication and non-pregnant women in Benin City, South – South Nigeria was investigated in this paper, with total of 135 healthy women comprising of 45 pregnant women with history of previous pregnancy complications, 45 pregnant women without history of pregnancy complications and 45 non-pregnant women without history of pregnancy complications (controls). Some demographic characteristics and 4ml of blood samples were obtained from each subject for the analysis of lead, mercury, cadmium and arsenic by standard methods. Pregnant women with history of pregnancy complications recorded a highly significant increase in the toxic metal (lead) mean value of 25.81μg/dl as against 23.70μg/dl for pregnant women without history of pregnancy complications and 11.23μg/dl for non-pregnant (control) women without history of pregnancy complications as well as significant increases in the mean values of other toxic metals (mercury, cadmium and arsenic) compared with controls (p<0.001). The selected toxic metals (Pb, Hg, Cd and As) may be involved in the development of pregnancy complications among pregnant women in Benin City, South– South Nigeria. Lead in particular may pose threat to mothers and fetuses as its mean values in the two groups of pregnant women were well above normal.
Resumo:
SummaryNational park and related forest conservation efforts tend to emanate from core areas of the world and are often imposed on rural people living on forest fringes in the least developed regions of lesser developed countries. We address the social and cultural processes that ensue when center-originatingconservation meets local people with their resource-dependent livelihoods, and how these vary under different circumstances. We examine and compare local people’s environmental andforest-related values and behaviors, using cultural models, after the establishment of national parks in two countries with very different social and environmental histories—Costa Rica and Honduras. We find that external cultural models were widely adopted by local people—hegemonic to the extent of structuring even discourse opposing conservation. Local people often expressed environmental values, but used formulaic language that suggested that these values were not well integrated with other aspects of their life and often not motivating. We pay particular attention to relationships between environmental values and livelihood values, and the varying ways that new, local environmental discourses and values emerge that mediate between these often conflicting value spheres.The recent international increase in national parks is a phenomenon of globalization, and often imposes new conservation practices and environmental values onto local people. While these new national parks have some broad public benefits that can be thought of as global, e.g. their role in preventing biodiversity loss and climate change, it is also true that few concrete benefits accrue to local people and that parks often impose great costs on local people in the form of lost land, diminished access to resources, and diminished autonomy as national governments and internationalorganizations extend into local life in new ways.These changes have serious repercussions for local people, often threatening their livelihoods and well-being in significant ways. Yet our results suggest that local people may be willing to work with park managers to co-inhabit landscapes when park managers are able to accommodate local livelihood needs.Keywords: National parks, Central America, Costa Rica, Honduras, forest conservationResumenLos parques nacionales y otros esfuerzos de conservación forestal tienden a surgir en las principales áreas núcleo del mundo, y por lo general son impuestos a los pobladores de espacios rurales que habitan franjas forestales de los países en vías de desarrollo.Este artículo se enfoca en los procesos sociales y culturales que se originan a partir de la imposición de estas áreas de conservación y sobre cómo se ve afectada la subsistencia de los pobladores que dependen de los recursos naturales de dichas áreas. También se evalúan y comparan los valores y comportamientos relacionados con el ambiente, percibidos por los pobladores con el establecimiento de parques nacionales, en dos países con historias sociales y ambientales muy diferentes como lo son Costa Rica y Honduras; para lo cual se utilizaron modelos culturales. Al respecto, se encontró que varios modelos culturales externos, que fueron ampliamente adoptados por los pobladores locales, han llegado a ser hegemónicos, afectando la conservación. Los habitantes del lugar estaban disconformes con respecto a los nuevos valores ambientales, porque estos, por un lado, no estaban adecuadamente integrados con otros aspectos de su vida, y por la escasa motivación en materia de conservación ambiental.De esta forma, se resalta la relación entre los valores ambientales y los valores de sus forma de vida;entre las nuevas formas de ruptura y los valores emergentes que median entre la esfera de valores conflictivos.El reciente aumento internacional de parques naciones es un fenómeno de globalización, y en consecuencia, impone nuevas prácticas de conservación y valores ambientales a los habitantes de estas localidades. Mientras estos nuevos parques nacionales generan algunas ventaja públicas, que pueden ser pensadas como globales (p.ej. su papel en la prevención de la pérdida de diversidad biológica y el cambio de clima), también ocasionan escasos beneficios para las comunidades, al imponer elevados costos para los pobladores locales como lo son: la pérdida de tierras, la disminución en el acceso a los recursos y la reducción de la autonomía, ya sea ante el gobierno nacional u organizaciones internaciones que extienden sus acciones políticas a la vida local en todas sus nuevas formas. Estos cambios repercuten drásticamente en los habitantes del lugar, lo cual a menudo amenaza, en general, el sustento y el bienestar, de modo significativo.Los resultados sugieren que los habitantes del lugar podrían estar dispuestos a trabajar con los gerentes del parque para co-habitar paisajes cuando éstos sean capaces de priorizar las necesidades de sobrevivencia de las formas de vida de los habitantes.Palabras clave: parques nacionales, América Central, Costa Rica, conservación forestal
Resumo:
The electrocardiogram (ECG) is the simplest and most effective non-invasive method to assess the electrical activity of the heart and to obtain information on the heart rate (HR) and rhythm. Because information on the HR of very small reptiles (body mass <10 g) is still scarce in the literature, in the present work we describe a procedure for recording the ECG in non-anesthetized geckos (Hemidactylus mabouia, Moreau de Jonnès, 1818) under different conditions, namely manual restraint (MR), spontaneous tonic immobility (TI), and in the non-restrained condition (NR). In the gecko ECG, the P, QRS and T waves were clearly distinguishable. The HR was 2.83 ± 0.02 Hz under MR, which was significantly greater (p < 0.001) than the HR under the TI (1.65 ± 0.09 Hz) and NR (1.60 ± 0.10 Hz) conditions. Spontaneously beating isolated gecko hearts contracted at 0.84 ± 0.03 Hz. The in vitro beating rate was affected in a concentration-dependent fashion by adrenoceptor stimulation with noradrenaline, as well as by the muscarinic cholinergic agonist carbachol, which produced significant positive and negative chronotropic effects, respectively (p < 0.001). To our knowledge, this is the first report on the ECG morphology and HR values in geckos, particularly under TI. The methodology and instrumentation developed here are useful for non-invasive in vivo physiological and pharmacological studies in small reptiles without the need of physical restraint or anesthesia.