25 myths that are destroying the environment : what many environmentalists believe and why they are wrong / / Daniel B. Botkin ; foreword by Alfred Runte

• Record Nr.: UNINA9910798778303321
• Autore: Botkin Daniel B.
• Pubbl/distr/stampa: Guilford, Connecticut : , : Taylor Trade Publishing, , 2017; ©2017
• ISBN: 1-4422-4493-3
• Descrizione fisica: 1 online resource (321 p.)
• Classificazione: NAT011000NAT010000NAT024000
• Disciplina: 363.7
• Soggetti: Nature - Effect of human beings on; Human ecology; Environmental protection; Global environmental change; Environmental policy; Nature conservation
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di contenuto: Contents; Foreword; Introduction; Myth 1 We Are the Only Species That Has Ever Had Global Effects on the Environment; Myth 2 Life Is Fragile, Requires Specific Conditions, and Can't Adjust Easily to Change; Myth 3 Extinction Is Unnatural and Bad, but Easy to Accomplish; Myth 4 The Balance of Nature Exists and Dominates All Life and All Environments; Myth 5 The Balance of Nature Is the Best and Only Condition for All Life; Myth 6 Beauty in Nature Only Happens in Areas Completely Undisturbed by Us; Myth 7 An Ecosystem Is Any Kind of Group, and a Biological Ecosystem Is a Fixed Group of Species; Myth 8 People Are Outside of NatureMyth 9 The Only Reason to Conserve Nature: Every Species Has a Moral Right to Exist; Myth 10 People Have Changed the Environment Only Since the Industrial/Scientific Age; Myth 11 Without Human Interference, Earth's Climate Is Stable; Myth 12 People Are the Most Important Factor Determining Earth's Climate; Myth 13 Climate Change Will Lead to Huge Numbers of Extinctions; Myth 14 Recent Weather Is Proof of Long-Term ; Climate Change; Myth 15 Consensus Is Science; Myth 16 Computer Models Are True; Myth 17 All Populations Are Always Bound to Grow So Rapidly That They Exceed the Ability of Their Environment to Support Them and Then Go Extinct. This Will Be the Inevitable Fate of the Human Population.Myth 18 Predators Are Absolutely Necessary to Control the Populations of Their Prey; Myth 19 Maximum Sustainable Yields Are Possible for Fish and All Wildlife; Myth 20 We Can't Do Much about Environmental Risks-From Smaller Ones like a Local River Flooding to Large Ones like Hurricanes; Myth 21 Smokey Bear Is Right: Only You Can Prevent Wildfires; Myth 22 Forests Are an Important Place for Long-Term Carbon StorageMyth 23 Solar and Wind Energy Require Huge Areas; Myth 24 Large-Scale Solar Energy Projects Work Only in Very Hot Climates; Myth 25 Compared to Climate Change, All Other Environmental Issues Are Minor; Final Overview; Endnotes
• Sommario/riassunto: "This is a book about ecology, environment, nature, and the misleading information that plagues the discussions of these topics. It is easy-to-read, fun, and doesn't have to be read all at once; you can pick it up for five or ten minutes, get one idea out of it, put it down, and come back for other five or ten minutes some other time. It's light reading about very difficult subjects, such as: is trying to save every single species necessarily a good thing? Is life really all that fragile? Is undisturbed nature the normal state of things? and twenty-three more insightful essays"--; "A discussion of ecology, environment, and misleading information that plagues the discussions of these topics"--

Non-archimedean tame topology and stably dominated types / / Ehud Hrushovski, François Loeser

• Record Nr.: UNINA9910822032303321
• Autore: Hrushovski Ehud
• Pubbl/distr/stampa: Princeton, New Jersey ; ; Oxford, [England] : , : Princeton University Press, , 2016; ©2016
• ISBN: 1-4008-8122-6
• Descrizione fisica: 1 online resource (227 p.)
• Collana: Annals of Mathematics Studies ; ; Number 192
• Classificazione: SI 830
• Disciplina: 512.4
• Soggetti: Tame algebras
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Front matter -- Contents -- 1. Introduction -- 2. Preliminaries -- 3. The space v̂ of stably dominated types -- 4. Definable compactness -- 5. A closer look at the stable completion -- 6. Γ-internal spaces -- 7. Curves -- 8. Strongly stably dominated points -- 9. Specializations and ACV2F -- 10. Continuity of homotopies -- 11. The main theorem -- 12. The smooth case -- 13. An equivalence of categories -- 14. Applications to the topology of Berkovich spaces -- Bibliography -- Index -- List of notations
• Sommario/riassunto: Over the field of real numbers, analytic geometry has long been in deep interaction with algebraic geometry, bringing the latter subject many of its topological insights. In recent decades, model theory has joined this work through the theory of o-minimality, providing finiteness and uniformity statements and new structural tools. For non-archimedean fields, such as the p-adics, the Berkovich analytification provides a connected topology with many thoroughgoing analogies to the real topology on the set of complex points, and it has become an important tool in algebraic dynamics and many other areas of geometry. This book lays down model-theoretic foundations for non-archimedean geometry. The methods combine o-minimality and stability theory. Definable types play a central role, serving first to define the notion of a point and then properties such as definable compactness. Beyond the foundations, the main theorem constructs a deformation retraction ; from the full non-archimedean space of an algebraic variety to a rational polytope. This generalizes previous results of V. Berkovich, who used resolution of singularities methods. No previous knowledge of non-archimedean geometry is assumed. Model-theoretic prerequisites are reviewed in the first sections.