Extinction Theory

What are the implications of how we talk about apocalypse? A new philosophical field has emerged. “Existential risk” studies any real or hypothetical human extinction event in the near or distant future. This movement examines catastrophes ranging from runaway global warming to nuclear warfare to malevolent artificial intelligence, deploying a curious mix of utilitarian ethics, statistical risk analysis, and, controversially, a transhuman advocacy that would aim to supersede almost all extinction scenarios. The proponents of existential risk thinking, led by Oxford philosopher Nick Bostrom, have seen their work gain immense popularity, attracting endorsement from Bill Gates and Elon Musk, millions of dollars, and millions of views. Calamity Theory is the first book to examine the rise of this thinking and its failures to acknowledge the ways some communities and lifeways are more at risk than others and what it implies about human extinction. Forerunners: Ideas First is a thought-in-process series of breakthrough digital publications. Written between fresh ideas and finished books, Forerunners draws on scholarly work initiated in notable blogs, social media, conference plenaries, journal articles, and the synergy of academic exchange. This is gray literature publishing: where intense thinking, change, and speculation take place in scholarship.

In 1980 Nobel Laureate Luis Alvarez announced his theory of the dinosaurs final demise: a gigantic meteorite crashed into the earth and raised a cloud of dust that caused darkness for years, suppressing photosynthesis, which impeded plant growth, and eventually starved the dinosaurs. This idea exploded into common awareness with almost unprecedented speed, and was instantly embraced by the media and the public. Almost without question, it quickly became the hottest scientific "fact". Unfortunately for Alvarez, many in the scientific community did to support this theory, and in fact later research showed the impossibility of such an idea. The Great Dinosaur Extinction Controversy chronicles the fantastic story of how this hypothesis became so widespread, the way it became "common knowledge" - from the pages of Science to The New York Times to Parade Magazine, the controversy it caused, and the ample scientific research that proves the theory wrong. Officer and Page also present an attractive and carefully investigated alternative explanation for the mass extinctions that occurred at the end of the Cretaceous period. Through this account they show the ways that sound science should be performed and the findings transmitted.

A multidisciplinary exploration of extinction and what comes next What comes after extinction? Including both prominent and unusual voices in current debates around the Anthropocene, this collection asks authors from diverse backgrounds to address this question. After Extinction looks at the future of humans and nonhumans, exploring how the scale of risk posed by extinction has changed in light of the accelerated networks of the twenty-first century. The collection considers extinction as a cultural, artistic, and media event as well as a biological one. The authors treat extinction in relation to a variety of topics, including disability, human exceptionalism, science-fiction understandings of time and posthistory, photography, the contemporary ecological crisis, the California Condor, systemic racism, Native American traditions, and capitalism. From discussions of the anticipated sixth extinction to the status of writing, theory, and philosophy after extinction, the contributions of this volume are insightful and innovative, timely and thought provoking. Contributors: Daryl Baldwin, Miami U; Claire Colebrook, Pennsylvania State U; William E. Connolly, Johns Hopkins U; Ashley Dawson, CUNY Graduate Center; Joseph Masco, U of Chicago; Nicholas Mirzoeff, New York U; Margaret Noodin, U of Wisconsin–Milwaukee; Jussi Parikka, U of Southampton; Bernard C. Perley, U of Wisconsin–Milwaukee; Cary Wolfe, Rice U; Joanna Zylinska, Goldsmiths, U of London.

This study identifies the fall of dinosaurs as the factor that allowed mammals to evolve into the dominant tetrapod form. It refutes the single-cause impact theory for dinosaur extinction and demonstrates that multiple factors--massive volcanic eruptions, loss of shallow seas, and extraterrestrial impact--likely led to their demise. While their avian relatives ultimately survived and thrived, terrestrial dinosaurs did not. Taking their place as the dominant land and sea tetrapods were mammals, whose radiation was explosive following nonavian dinosaur extinction. The author argues that because of dinosaurs, Mesozoic mammals changed relatively slowly for 145 million years compared to the prodigious Cenozoic radiation that followed. Finally out from under the shadow of the giant reptiles, Cenozoic mammals evolved into the forms we recognize today in a mere ten million years after dinosaur extinction.

The belief that some dinosaurs were so gigantic that they couldn't exist with today's gravity is a topic frequently discussed on internet websites. The opinion posted the most is that the Earth's mass must have changed significantly resulting in an alteration of surface gravity or that the Earth somehow expanded. Neither of these opinions have scientific support. The theory explained in this book, the GTME, does have that support. Readers familiar with basic rotational physics understand that when there is a redistribution of mass within a rotating symmetrical object, like the Earth, there are two laws of physics that must be obeyed: the conservation of (1) rotational kinetic energy and (2) angular momentum. When the Earth's continents coalesced to form Pangea, their center of mass shifted south of the equator, an action which would have reduced (1) and (2). Something had to offset the above continental movement in order to conserve the two quantities described. That something was either the shifting of the Earth's core elements (inner/outer cores and densest lower mantle) away from Pangea or the increase in rotational velocity of the Earth (i.e., shortening of the day). The latter has not been detected during Pangea's existence. Considerable circumstantial evidence supports the GTME. The most obvious is the existence of the largest dinosaurs, the sauropods. As Pangea broke apart and surface gravity increased the extinction of all non-avian dinosaurs, sea-going reptiles, ammonites, pterosaurs, etc., occurred. Core element movement is supported by the massive flood basalt volcanism of the Mesozoic and the two superchrons, the periods when magnetic pole reversal didn't occur. The most powerful support for the GTME comes from the science of paleomagnetism. Paleomagnetists are split between support of the Pangea A vs. Pangea B models. Relying on the magnetic Geocentric Axial Dipole (GAD) model to reconstruct continental positions of Pangea they encountered a roadblock; the continents appeared to overlap. The GTME solves this problem because the shifting of the core elements from the Earth's geocenter mandates a non-GAD model. A recent study hypothesizes that geomagnetic pole reversals are directly linked to continental plate distribution; a concept already posited by the GTME! As explained in this book, many if not most of the mass extinctions were the result of changes in the Earth's surface gravity due to core element movement resulting from continental tectonic plate movement.

This is a summary of The Sixth Extinction: An Unnatural History...Summarized by J.J. Holt

As the extinction of species accelerates and more species become endangered, activists, filmmakers, writers, and artists have responded to bring this global crisis to the attention of the public. Until now, there has been no study of the frameworks that shape these narratives and images, or of the symbolic meanings that the death of species carries in different cultural communities. Ursula Heise makes the case that understanding how and why endangered species come to matter culturally is indispensable for any effective advocacy on their behalf. Heise begins by showing that the tools of conservation science and law need to be viewed as cultural artifacts: biodiversity databases and laws for the protection of threatened species use rhetorical and cultural resources that open up different approaches to the problem of understanding global wildlife. The second half of her book explores ways of envisioning alternative futures for biodiversity. The narrative of nature s decline or even imminent disappearance has been a successful rallying trope for those skeptical of modernization and ideologies of progress. But environmentalists nostalgia for the past and pessimistic outlook on the future have also alienated parts of the public. Heise tells the story of environmental activists, writers, and scientists who are creating new stories to guide the environmental imagination."