(2009). A Review of “Geochemistry and the Biosphere: Essays by Vladimir I. Vernadsky”. World Futures: Vol. 65, Sustainable Development in Practice, pp. 436-441.

This contribution addresses the anthropocenic challenge from a dialectical perspective, combining a diagnostics of the present with a prognostic of the emerging future. It builds on the oeuvres of two prominent dialectical thinkers, namely Georg Wilhelm Friedrich Hegel and Pierre Teilhard de Chardin. Hegel himself was a pre-anthropocenic thinker who did not yet thematise the anthropocenic challenge as such, but whose work allows us to emphasise the unprecedented newness of the current crisis. I will especially focus on his views on (...) Earth as a planetary process, emphasising that the “spirit” of technoscience is basically monitoring the impacts of its own activities on geochemistry and evolution. Subsequently, I will turn attention to Teilhard de Chardin, a palaeontologist and philosopher rightfully acknowledged as one of the first thinkers of the Anthropocene whose oeuvre provides a mediating middle term between Hegel’s conceptual groundwork and the anthropocenic present. Notably, I will discuss his views on self-directed evolution, on the on-going absorption of the biosphere by the noosphere, and on emerging options for “sublating” the current crisis into a synthetic convergence towards the Omega point. I will conclude that, after disclosing the biomolecular essence of life, biotechnology must now take a radical biomimetic turn ; that reflection itself must become distributed and collective; and, that the anthropocenic crisis must be sublated into the noocene. (shrink)

Historical contingency is commonly associated with unpredictability and outcome variability. As such, it can be seen as an undesirable aspect of experimental investigations. Many might agree that experimental methodologies that include enough control help to by-pass this problem and thereby make for more secure knowledge. Against this received view, we argue that, for at least some historically contingent processes, an over-emphasis on control might mislead by obscuring the very object of investigation or by preventing fruitful discoveries. In discussing cases from (...) evolutionary biology, developmental biology, and geochemistry/astrophysics, we show how investigating through approaches that don’t prioritize environmental control, while allowing for greater variability of outcomes, better respects the object/environment entanglement of these systems. Finally, we defend the idea that, despite the lower level of control, these types of experiments do not have a lower epistemic value than more highly controlled experiments. (shrink)

If the problem of the origin of life is conceptualized as a process of emergence of biochemistry from proto-biochemistry, which in turn emerged from the organic chemistry and geochemistry of primitive earth, then the resources of the new sciences of complex systems dynamics can provide a more robust conceptual framework within which to explore the possible pathways of chemical complexification leading to living systems and biosemiosis. In such a view the emergence of life, and concomitantly of natural selection and (...) biosemiosis, is the result of deep natural laws (the outlines of which we are only beginning to perceive) and reflects a degree of holism in those systems that led to life. Further, such an approach may lead to the development of a more general theory of biology and of natural organization, one informed by semiotic concepts. (shrink)

Reconstructing the genetic traits of the Last Common Ancestor (LCA) and the Tree of Life (TOL) are two examples of the reaches of contemporary molecular phylogenetics. Nevertheless, the whole enterprise has led to paradoxical results. The presence of Lateral Gene Transfer poses epistemic and empirical challenges to meet these goals; the discussion around this subject has been enriched by arguments from philosophers and historians of science. At the same time, a few but influential research groups have aimed to reconstruct the (...) LCA with rich-in-detail hypotheses and high-resolution gene catalogs and metabolic traits. We argue that LGT poses insurmountable challenges for detailed and rich in details reconstructions and propose, instead, a middle-ground position with the reconstruction of a slim LCA based on traits under strong pressures of Negative Natural Selection, and for the need of consilience with evidence from organismal biology and geochemistry. We defend a cautionary perspective that goes beyond the statistical analysis of gene similarities and assumes the broader consequences of evolving empirical data and epistemic pluralism in the reconstruction of early life. (shrink)

For mid-twentieth century scientists, industrialists, politicians, and lawyers, manganese (polymetallic) nodules were singular and valuable condensations of complex and little-understood biogeochemical processes. This paper examines how those processes were made tractable objects of interdisciplinary scientific inquiry in the mid-twentieth century, and how the study of those processes required the importation of biological and ecological concepts into the research of geochemistry at sea. Though largely falling away by the 1980s, the study of eukaryotic life on and in nodules was a (...) lively area of research after the International Geophysical Year (1957–1958) and especially during the 1970s, when the US National Science Foundation funded a large, inter-university program on the study of manganese nodules to answer basic questions about ore formation and origin. Sorting out how deep-sea rocks generated and grew into valuable deposits required parsing life’s patterns—rhythmic growth, cycles of metabolism, evolution, death and organic decay—from geological processes. I story how scientists came to interpret nodules as created and maintained amid hybrid biological-geological agencies. Building on work in multispecies and animal history, I articulate a multispecies methodology for taking mid-century nodule science as shot through with interspecies encounter, producing an archive co-authored with invertebrates. Both enabled and frustrated by organisms, abyssal resources and environments emerged into legibility together, within frames of oceanic resource extraction. Given renewed contemporary exigencies of deep-sea mining, this article reaches further across literary criticism, more-than-human history, and science & technology studies to expand the methodological terrain on which marine multispecies histories might draw. (shrink)

For mid-twentieth century scientists, industrialists, politicians, and lawyers, manganese (polymetallic) nodules were singular and valuable condensations of complex and little-understood biogeochemical processes. This paper examines how those processes were made tractable objects of interdisciplinary scientific inquiry in the mid-twentieth century, and how the study of those processes required the importation of biological and ecological concepts into the research of geochemistry at sea. Though largely falling away by the 1980s, the study of eukaryotic life on and in nodules was a (...) lively area of research after the International Geophysical Year (1957–1958) and especially during the 1970s, when the US National Science Foundation funded a large, inter-university program on the study of manganese nodules to answer basic questions about ore formation and origin. Sorting out how deep-sea rocks generated and grew into valuable deposits required parsing life’s patterns—rhythmic growth, cycles of metabolism, evolution, death and organic decay—from geological processes. I story how scientists came to interpret nodules as created and maintained amid hybrid biological-geological agencies. Building on work in multispecies and animal history, I articulate a multispecies methodology for taking mid-century nodule science as shot through with interspecies encounter, producing an archive co-authored with invertebrates. Both enabled and frustrated by organisms, abyssal resources and environments emerged into legibility together, within frames of oceanic resource extraction. Given renewed contemporary exigencies of deep-sea mining, this article reaches further across literary criticism, more-than-human history, and science & technology studies to expand the methodological terrain on which marine multispecies histories might draw. (shrink)

During the second half of the twentieth century, the domain of geochemistry has greatly expanded and the field is today often seen as a branch of an extended chemistry of the Earth, called cosmochemistry. This paper is a historical introduction to cosmochemistry in which the wider cosmic aspects are surveyed up to about 1915, when nuclear physics changed the scene. These wider aspects or themes include, firstly, the attempts to determine the relative abundances of the elements, secondly, the extension (...) of geochemistry to include physical geochemistry, thirdly, the study of meteorites and, fourthly, the spectroscopic study of the stars within the astrochemical tradition. Because of the lack of reliable data, a great deal of the protocosmochemistry described in the present paper was speculative. Nonetheless, by 1915 the contours of the cosmochemistry of the future were just visible and the developments here singled out can thus be seen as belonging to the prehistory of modern cosmochemistry. (shrink)

RESUMO O problema da era do gelo foi o primeiro e, até algumas décadas atrás, o único debate relevante sobre as mudanças climáticas, emergindo como uma discussão da geologia, que não foi capaz de equacioná-lo. Ficou como um mistério que transitou, no século XIX, pela matemática e astronomia e foi objeto de especulações na geofísica e geoquímica sem que uma solução satisfatória fosse encontrada. A resposta básica para a ocorrência das eras do gelo foi dada por Milankovitch, com sua teoria (...) matemática da insolação, na década de 1940. Todavia somente a consolidação da paleoclimatologia, na década de 1970, ofereceu as evidências necessárias para comprová-la. O refinamento desses estudos paleoclimatológicos acabou revelando, todavia, um fenômeno inesperado, a saber, que as transições de estados de equilíbrio no sistema climático aconteceram muito rapidamente no passado. As mudanças climáticas da era do gelo do pleistoceno ocorreram de maneira abrupta e radical, em uma negação do gradualismo. Em consequência, o atual aquecimento global deve ser visto como um fenômeno muito mais perigoso e imprevisível do que usualmente apresentado. ABSTRACT The ice age problem was the first and, until a few decades ago, the only relevant debate on climate change, emerging as a discussion in geology, which was unable to frame it. It remained a mystery in the nineteenth century, being discussed in mathematics and astronomy, and it was a matter of speculation in geophysics and geochemistry without a satisfactory solution. The basic explanation for the occurrence of ice ages was given by Milankovitch, by means of his mathematical theory of insolation in the 1940s. Nevertheless, only the consolidation of paleoclimatology, in the 1970s, provided the necessary evidence to prove it. The refinement of these studies in paleoclimatology, however, brought to light an unexpected phenomenon: the transition between equilibrium state in the climate system took place very quickly in the past. Climate change in the Pleistocene Ice Age was abrupt and radical, contrary to any gradualism. Therefore, the current global warming should be seen as a much more dangerous and unpredictable phenomenon, in comparison with the way it is usually presented. (shrink)

ArgumentIn Italy, only 2 per cent of the population consider scientists and experts to be society's leading personalities. Scientists are classified among the “weak social groups” and more precisely as those who have little influence either because they lack representation in the media, or because they lack resources. This article contributes to the current debate on science policies in Europe and addresses the question of why science has such a low reputation in Italy. How did this situation emerge and what (...) methods should be taken to tackle it beyond merely increasing financial resources? An historical overview of how Marcello Carapezza and Alberto Monroy created leading research centers in geochemistry and developmental biology in Palermo offers insight into the opportunities and threats posed by Italy's academic system. This brief analysis of the Italian academic system should interest international readers who want their country to evolve from a closed, corporative, centralized system into a country that can compete at an international level to attract talented students and resources and achieve a higher scientific reputation. (shrink)

It is my pleasure to open this special issue with which we like to celebrate the fifth birthday of our journal. What was originally conceived as one special issue of HYLE that has rapidly grown to a considerable number of high quality papers for which we need at least two issues. We received a total of 19 paper submissions, some of which are still under review. The manuscripts cover nearly every aspect of models outlined in the Call for Paper (HYLE (...) 4, pp. 171f.), and much more. As far as the review procedure allows, we are going to divide the topic roughly into three topical sections, each with about four contributions. The following four papers of the present volume make up the first section that is devoted to models in quantum and computational chemistry. The second section, to be published in the next issue, is more specifically on a very peculiar type of models in chemistry: molecular models. The third and last section will be on models of complex systems, in particular in biochemistry, geochemistry, and chemical engineering. (shrink)

To explore whether the generation of new protein folds could be linked to metallic cofactor recruitment, we identified the oldest examples of folds for manganese, iron, zinc, and copper proteins by analyzing their fold‐domain mapping patterns. We discovered that the generation of these folds was tightly coupled to corresponding metals. We found that the emerging order for these folds, i.e., manganese and iron protein folds appeared earlier than zinc and copper counterparts, coincides with the putative bioavailability of the corresponding metals (...) in the ancient anoxic ocean. Therefore, we conclude that metallic cofactors, like organic cofactors, play an evolutionary role in the formation of new protein folds. This link could be explained by the emergence of protein structures with novel folds that could fulfill the new protein functions introduced by the metallic cofactors. These findings not only have important implications for understanding the evolutionary mechanisms of protein architectures, but also provide a further interpretation for the evolutionary story of superoxide dismutases. (shrink)

Recent studies challenge the classical view that the origin of animal life was primarily controlled by atmospheric oxygen levels. For example, some modern sponges, representing early‐branching animals, can live under 200 times less oxygen than currently present in the atmosphere – levels commonly thought to have been maintained prior to their origination. Furthermore, it is increasingly argued that the earliest animals, which likely lived in low oxygen environments, played an active role in constructing the well‐oxygenated conditions typical of the modern (...) oceans. Therefore, while oxygen is still relevant to understanding early animal evolution, the relationships between the two might be less straightforward than previously thought. (shrink)

The origin and early evolution of animals marks an important event in life's history. This event is historically associated with an important variable in Earth history – oxygen. One view has it that an increase in oceanic oxygen levels at the end of the Neoproterozoic Era (roughly 600 million years ago) allowed animals to become large and leave fossils. How important was oxygen for the process of early animal evolution? New data show that some modern sponges can survive for several (...) weeks at low oxygen levels. Many groups of animals have mechanisms to cope with low oxygen or anoxia, and very often, mitochondria – organelles usually associated with oxygen – are involved in anaerobic energy metabolism in animals. It is a good time to refresh our memory about the anaerobic capacities of mitochondria in modern animals and how that might relate to the ecology of early metazoans. (shrink)