Fermer les détails sur les cookies

Ce site utilise des témoins. En apprendre plus à propos des témoins.

OverDrive désire utiliser des fichiers témoins pour stocker des informations sur votre ordinateur afin d'améliorer votre expérience sur notre site Web. Un des fichiers témoins que nous utilisons est très important pour certains aspects du fonctionnement du site, et il a déjà été stocké. Vous pouvez supprimer ou bloquer tous les fichiers témoins de ce site, mais ceci pourrait affecter certaines caractéristiques ou services du site. Afin d'en apprendre plus sur les fichiers témoins que nous utilisons et comment les supprimer, cliquez ici pour lire notre politique de confidentialité.

Si vous ne désirez pas continuer, veuillez appuyer ici afin de quitter le site.

Cachez l'avis

  Nav. principale
How the World Really Works
Couverture de How the World Really Works
How the World Really Works
The Science Behind How We Got Here and Where We're Going
Emprunter Emprunter
INSTANT NEW YORK TIMES BESTSELLER
“A new masterpiece from one of my favorite authors… [How The World Really Works] is a compelling and highly readable book that leaves readers with the fundamental grounding needed to help solve the world’s toughest challenges.”Bill Gates
 
“Provocative but perceptive . . . You can agree or disagree with Smil—accept or doubt his ‘just the facts’ posture—but you probably shouldn’t ignore him.”—The Washington Post
An essential analysis of the modern science and technology that makes our twenty-first century lives possible—a scientist's investigation into what science really does, and does not, accomplish.

We have never had so much information at our fingertips and yet most of us don’t know how the world really works. This book explains seven of the most fundamental realities governing our survival and prosperity. From energy and food production, through our material world and its globalization, to risks, our environment and its future, How the World Really Works offers a much-needed reality check—because before we can tackle problems effectively, we must understand the facts.
 
In this ambitious and thought-provoking book we see, for example, that globalization isn’t inevitable—the foolishness of allowing 70 per cent of the world’s rubber gloves to be made in just one factory became glaringly obvious in 2020—and that our societies have been steadily increasing their dependence on fossil fuels, such that any promises of decarbonization by 2050 are a fairy tale. For example, each greenhouse-grown supermarket-bought tomato has the equivalent of five tablespoons of diesel embedded in its production, and we have no way of producing steel, cement or plastics at required scales without huge carbon emissions.
 
Ultimately, Smil answers the most profound question of our age: are we irrevocably doomed or is a brighter utopia ahead? Compelling, data-rich and revisionist, this wonderfully broad, interdisciplinary guide finds faults with both extremes. Looking at the world through this quantitative lens reveals hidden truths that change the way we see our past, present and uncertain future.
INSTANT NEW YORK TIMES BESTSELLER
“A new masterpiece from one of my favorite authors… [How The World Really Works] is a compelling and highly readable book that leaves readers with the fundamental grounding needed to help solve the world’s toughest challenges.”Bill Gates
 
“Provocative but perceptive . . . You can agree or disagree with Smil—accept or doubt his ‘just the facts’ posture—but you probably shouldn’t ignore him.”—The Washington Post
An essential analysis of the modern science and technology that makes our twenty-first century lives possible—a scientist's investigation into what science really does, and does not, accomplish.

We have never had so much information at our fingertips and yet most of us don’t know how the world really works. This book explains seven of the most fundamental realities governing our survival and prosperity. From energy and food production, through our material world and its globalization, to risks, our environment and its future, How the World Really Works offers a much-needed reality check—because before we can tackle problems effectively, we must understand the facts.
 
In this ambitious and thought-provoking book we see, for example, that globalization isn’t inevitable—the foolishness of allowing 70 per cent of the world’s rubber gloves to be made in just one factory became glaringly obvious in 2020—and that our societies have been steadily increasing their dependence on fossil fuels, such that any promises of decarbonization by 2050 are a fairy tale. For example, each greenhouse-grown supermarket-bought tomato has the equivalent of five tablespoons of diesel embedded in its production, and we have no way of producing steel, cement or plastics at required scales without huge carbon emissions.
 
Ultimately, Smil answers the most profound question of our age: are we irrevocably doomed or is a brighter utopia ahead? Compelling, data-rich and revisionist, this wonderfully broad, interdisciplinary guide finds faults with both extremes. Looking at the world through this quantitative lens reveals hidden truths that change the way we see our past, present and uncertain future.
Formats disponibles-
  • OverDrive Read
  • EPUB eBook
Langues:-
Copies-
  • Disponible:
    1
  • Copies de la bibliothèque:
    1
Niveaux-
  • Niveau ATOS:
  • Lexile Measure:
  • Niveau d'intérêt:
  • Difficulté du texte:


Extraits-
  • From the cover

    1. Understanding Energy

     

    Fuels and Electricity

     

    Consider a benign science fiction scenario: not travel to distant planets in search of life, but the Earth and its inhabitants as targets of remote monitoring by an exceedingly sapient civilization that sends its probes to nearby galaxies. Why do they do this? Just for the satisfaction of systematic understanding, and perhaps also to avoid dangerous surprises should the third planet orbiting around an unremarkable star in a spiral galaxy become a threat, or perhaps in case they should require a second home. Hence this planet keeps periodic tabs on Earth.

     

    Let us imagine that a probe approaches our planet once every 100 years and that it is programmed to make a second pass (a closer inspection) only when it detects a previously unobserved kind of energy conversion-the changing of energy from one form to another-or a new physical manifestation dependent on it. In fundamental physical terms, any process-be it rain, a volcanic eruption, plant growth, animal predation, or the growth of human sapience-can be defined as a sequence of energy conversions, and for a few hundred million years after the Earth's formation the probes would see only the same varied, but ultimately monotonous, displays of volcanic eruptions, earthquakes and atmospheric storms.

     

    Fundamental shifts

     

    The first microorganisms emerge nearly 4 billion years ago but passing probes do not register them, as these life forms are rare and remain hidden, associated with alkaline hydrothermal vents at the ocean's floor. The first occasion for a closer look arises as early as 3.5 billion years ago, when a passing probe records the first simple, single-celled photosynthetic microbes in shallow seas: they absorb near-infrared radiation-that which is just beyond the visible spectrum-and do not produce oxygen. Hundreds of millions of years then elapse with no signs of change before cyanobacteria begin to use the energy of the visible incoming solar radiation to convert CO2 and water into new organic compounds and release oxygen.

     

    This is a radical shift that will create Earth's oxygenated atmosphere, yet a long time elapses before new, more complex aquatic organisms are seen 1.2 billion years ago, when the probes document the rise and diffusion of brilliantly colored red algae (due to the photosynthetic pigment phycoerythrin) and of much larger, brown algae. Green algae arrive nearly half a billion years later, and because of the new proliferation of marine plants the probes get better sensors to monitor the sea floor. This pays off, as more than 600 million years ago the probes make another epochal discovery: the existence of the first organisms made of differentiated cells. These flattish, soft, bottom-dwelling creatures (known as Ediacaran fauna after their Australian domicile) are the first simple animals requiring oxygen for their metabolism and, unlike algae that are merely tossed by waves and currents, they are mobile.

     

    And then the probes begin to document what are, comparatively speaking, rapid changes: instead of passing over lifeless continents and waiting hundreds of millions of years before logging another epochal shift, they begin to record the rising, cresting, and subsiding waves of the emergence, diffusion, and extinction of a huge variety of species. This period starts with the Cambrian explosion of small marine bottom-dwellers (541 million years ago, dominated first by trilobites) through the arrival of the first fishes, amphibians, land plants, and four-legged (and hence exceptionally mobile) animals. Periodic extinctions reduce, or...

Critiques-
  • Library Journal

    April 1, 2022

    Smil (emeritus, environmental science, Univ. of Manitoba; Numbers Don't Lie) presents a grimly realistic picture of the present and future of human society's impact on the environment. The first half of the book is largely accounting: meticulous audits of all of the energy inputs that go into producing food, basic materials, and the transportation and communication systems that connect the globe. Due to the complex and not fully understood interactions of the dynamic systems involved, he disclaims giving detailed solutions or even making long -term predictions. In doing so, the book charts a course between catastrophic fatalism and hopeful assumptions about future technological breakthroughs. Smil justifies this position by looking to the past, and points out how unforeseen natural and sociopolitical events such as COVID or the economic opening of China have dramatically challenged previous models. Ultimately, he sees hard choices and slow changes to be made within the inertia of our existing energy, agriculture, and manufacturing infrastructure as the surest way for a sustainable future. VERDICT An excellent encapsulation and synthesis of several of Smil's books from the past decade, offering a realistic assessment for environmentalists, economists, and anyone worried about how humanity will survive the next century.--Wade Lee-Smith

    Copyright 2022 Library Journal, LLC Used with permission.

  • Publisher's Weekly

    April 11, 2022
    Smil (Numbers Don’t Lie), an environmental studies professor at the University of Manitoba, quantifies the modern world in this arcane survey. To break down “how the world really works, and... use that understanding in order to make us better realize our future limits and opportunities,” Smil examines stats about energy and food production, globalization, and environmental challenges: readers will learn that it takes at least 21 gigajoules to synthesize a ton of ammonia; that worldwide steel production in 2019 used about 34 exajoules of energy; and that in ancient Egypt, 1.3 people could be fed per hectare of land. Smil spends a lot of time on environmental issues, arguing that moving away from carbon-based sources of energy is all but impossible in the short or medium-term, and criticizing many researchers’ environmental models as “flights of fancy unencumbered by real-world considerations.” While there’s no shortage of fascinating material, Smil neglects to suggest ways for dealing with the global issues he sums up—fossil-fuel dependence, global warming—leaving this feeling incomplete. The numbers are there, but they don’t add up to much.

  • Booklist

    May 1, 2022
    The author of may works concerning energy and the biosphere, Smil seeks to dispel misunderstanding of how our lives are sustained, physically, in light of the call for a carbon-zero, fossil fuel-free economy by 2050. While acknowledging steps that can promote zero-carbon emissions, Smil argues that it is unrealizable. To make his case, he analyzes energy-consuming arenas of modern economies, beginning with energy production itself. Even under national policies to substitute renewable sources for fossil fuel, the latter will still dominate at 70 percent of total energy production in 2050. To explain why, Smil delves into the energy requirements of food production, materials production (steel, ammonia, cement, plastics), and global transportation, all of which have increased markedly. With an eye to the accompanying increase of greenhouse gases, Smil offers assessments of risk incurred by individuals and in terms of the global environment's ability to support life's existential requirements of water and air. While not sanguine about climate warming, Smil equally dismisses predictions of catastrophe and technology-driven salvation, providing an information-dense presentation that will benefit open-minded readers engaged with climate and energy issues.

    COPYRIGHT(2022) Booklist, ALL RIGHTS RESERVED.

  • Kirkus

    Starred review from April 1, 2022
    A scientific panorama of our well-being and how it can be sustained in our current tumultuous times and beyond. In seven chapters, Smil, the author of more than 40 books on science, nature, and current affairs, explores the science behind essential contemporary topics: energy generation, food production, material dependence, globalization, large-scale risks, responses to environmental threats, and predictive uncertainty. The author aims to combat the widespread "comprehension deficit" about basic scientific facts, and he seeks to "explain some of the most fundamental ruling realities governing our survival and our prosperity." That aim is marvelously achieved, as Smil sheds needed light on how global populations depend on particular technologies and industrial processes while debunking common misperceptions. Chief among these is the assumption that large-scale decarbonization is plausible in the near term. As several chapters demonstrate, we will most likely remain dependent on the consumption of massive amounts of fossil fuels for decades to come before alternative energy sources can be scaled to meet global demand. The author provides a revelatory overview of where human health and affluence come from, how they might be preserved in spite of alarming signs of ecological collapse, and which specific disruptions to them, such as those posed by viral pandemics or climate change, are actually most threatening. Throughout, Smil exposes the dubious assumptions of so-called "catastrophism," the conviction that human life is doomed to extinction in the near future, as well as "techno-optimism," an equally misplaced faith in the ingenuity of engineers to deliver utopian solutions to all our existential challenges. The author's sober and illuminating assessment of contemporary realities shows how challenges can, seemingly, be managed in the coming decades even if the precise means of doing so--and the various complications that will inevitably unfold--cannot be reliably ascertained in advance. An exceptionally lucid, evenhanded study of the scientific basis of our current and future lives.

    COPYRIGHT(2022) Kirkus Reviews, ALL RIGHTS RESERVED.

Informations sur le titre+
  • Éditeur
    Penguin Publishing Group
  • OverDrive Read
    Date de publication:
  • EPUB eBook
    Date de publication:
Informations relatives aux droits numériques+
  • La protection des droits d'auteur (DRM) exigée par l'éditeur peut s'appliquer à ce titre afin d'en limiter ou d'en interdire la copie ou l'impression. Il est interdit de partager les fichiers ou de les redistribuer. Vos droits d'accès à ce matériel expireront à la fin de la période d'emprunt. Veuillez consulter l'avis important à propos du matériel protégé par droits d'auteur pour les conditions qui s'appliquent à ce contenu.

Status bar:

Vous avez atteint votre limite d'emprunt.

Accédez à votre page Emprunts pour gérer vos titres.

Close

Vous avez déjà emprunté ce titre.

Vous souhaitez accéder à votre page Emprunts?

Close

Limite de recommandations atteinte.

Vous avez atteint le nombre maximal de titres que vous pouvez recommander pour l'instant. Vous pouvez recommander jusqu'à 0 titres tous les 0 jours.

Close

Connectez-vous pour recommander ce titre.

Recommandez à votre bibliothèque qu'elle ajoute ce titre à la collection numérique.

Close

Plus de détails

Close
Close

Disponibilité limitée

La disponibilité peut changer durant le mois selon le budget de la bibliothèque.

est disponible pendant jours.

Une fois que la lecture débute, vous avez heures pour visionner le titre.

Close

Permission

Close

Le format OverDrive de ce livre électronique comporte ne narration professionnelle qui joue pendant que vous lisez dans votre navigateur. Apprenez-en plus ici.

Close

Réservations

Nombre total de retenues:


Close

Accès restreint

Certaines options de formatage ont été désactivées. Il est possible que vous voyiez d'autres options de téléchargement en dehors de ce réseau.

Close

Bahreïn, Égypte, Hong Kong, Iraq, Israël, Jordanie, Koweït, Liban, Mauritanie, Maroc, Oman, Palestine, Qatar, Arabie saoudite, Soudan, République arabe syrienne, Tunisie, Turquie, Émirats arabes unis, et le Yémen

Close

Vous avez atteint votre limite de commandes à la bibliothèque pour les titres numériques.

Pour faire de la place à plus d'emprunts, vous pouvez retourner des titres à partir de votre page Emprunts.

Close

Limite d'emprunts atteinte

Vous avez emprunté et rendu un nombre excessif d'articles sur votre compte pendant une courte période de temps. Essayez de nouveau dans quelques jours.

Si vous n'arrivez toujours pas à emprunter des titres au bout de 7 jours, veuillez contacter le service de support.

Close

Vous avez déjà emprunté ce titre. Pour y accéder, revenez à votre page Emprunts.

Close

Ce titre n'est pas disponible pour votre type de carte. Si vous pensez qu'il s'agit d'une erreur contactez le service de support.

Close

Une erreur inattendue s'est produite.

Si ce problème persiste, veuillez contacter le service de support.

Close

Close

Remarque: Barnes & Noble® peut changer cette liste d'appareils à tout moment.

Close
Achetez maintenant
et aidez votre bibliothèque à GAGNER !
How the World Really Works
How the World Really Works
The Science Behind How We Got Here and Where We're Going
Vaclav Smil
Choisissez un des détaillants ci-dessous pour acheter ce titre.
Une part de cet achat est destinée à soutenir votre bibliothèque.
Close
Close

Il ne reste plus d'exemplaire de cette parution. Veuillez essayer d'emprunter ce titre de nouveau lorsque la prochaine parution sera disponible.

Close
Barnes & Noble Sign In |   Se connecter

Sur la prochaine page, on vous demandera de vous connecter à votre compte de bibliothèque.

Si c'est la première fois que vous sélectionnez « Envoyer à mon NOOK », vous serez redirigé sur une page de Barnes & Noble pour vous connecter à (ou créer) votre compte NOOK. Vous devriez n'avoir qu'à vous connecter une seule fois à votre compte NOOK afin de le relier à votre compte de bibliothèque. Après cette étape unique, les publications périodiques seront automatiquement envoyées à votre compte NOOK lorsque vous sélectionnez « Envoyer à mon NOOK ».

La première fois que vous sélectionnez « Send to NOOK » (Envoyer à mon NOOK), vous serez redirigé sur la page de Barnes & Nobles pour vous connecter à (ou créer) votre compte NOOK. Vous devriez n'avoir qu'à vous connecter une seule fois à votre compte NOOK afin de le relier à votre compte de bibliothèque. Après cette étape unique, les publications périodiques seront automatiquement envoyées à votre compte NOOK lorsque vous sélectionnez « Send to NOOK » (Envoyer à mon NOOK).

Vous pouvez lire des publications périodiques sur n'importe quelle tablette NOOK ou dans l'application de lecture NOOK gratuite pour iOS, Android ou Windows 8.

Accepter pour continuerAnnuler