The Earth As A Cradle For Life

This book takes a long-term view of Earth's development as a habitable planet, incorporating physical, chemical and biological processes on the early Earth, through to human perturbations of the modern world and their implications for life in the future.

The Earth as a Cradle for Life aims to fill the gap between readers who have a strong and informed scientific interest in the environment (but no access to the journal literature), and their desire for a basic understanding of the environment. It provides a comprehensive account, and requires no advanced mathematical skills. It will also satisfy a need for a textbook on fundamental science for students in tertiary environmental science courses that may otherwise neglect the underlying basis of their subject. The Earth as a Cradle takes a step back from common perceptions of the environment, and presents a new fundamental perspective. It draws attention to observations that have been neglected or discounted for reasons the authors found invalid, and which allow a more coherent account of the environment than is possible without them. Misunderstandings about the environment are common, even in the scientific community. They arise in part from the multi-disciplinary nature of the subject and the difficulty in keeping all relevant observations in mind and assessing their validity. These misunderstandings are often consequences of the band-wagon effect: when an idea is reinforced by repeated quotation and becomes difficult to contradict even when it is in obvious conflict with observations. This is especially so in a subject with strong media interest and conflicting commercial interests — and Cradle sweeps these considerations aside and presents a new environmental scenario. This book draws on several decades of research by the authors on fundamental Earth science, and presents probing insights on environmental questions that are not widely recognized — even in the professional community. For this reason it will become a landmark in the environmental science and Earth science literature. Contents:Physical and Astronomical Foundations:“The Age of the Earth as an Abode Fitted for Life” (Lord Kelvin, 1899)Rotation, Tides and the MoonThe Variable Sun and Other Astronomical EffectsThe Magnetic FieldThe Evolving Earth:Internal Heat and the Evolution of the EarthThe OceansPlanetary Atmospheres and the Appearance of Free OxygenThermal Balance, the Greenhouse Effect and Sea LevelEnvironmental Crises and Mass Extinctions of SpeciesStability of the EnvironmentInorganic Mineral Deposits as Products of an Evolving EnvironmentFossil Fuels, Buried Carbon and Photosynthetic OxygenHuman Influences:Effects of Fossil Fuel UseA Comparison of Human Energy Use with Natural DissipationsThe Cradle is RockingA Summary of Salient Conclusions Readership: General public, students, professionals, and researchers in the fields of environmental science, geology, geophysics, climatology, meteorology, oceanography, and environmental education. Keywords:Alternative Energy;Atmosphere;Carbon Dioxide;Earth Evolution;Fossil Fuels;Global Warming;Greenhouse Effect;Ice Ages;Impacts;Moon;Oceans;Oxygen;Solar Radiation;VolcanismKey Features:This is one of the very few books that present the fundamental aspects of the environment, the underlying reasons why it is the way it is and the processes that led to it. Available rivals generally present conventional and, in some cases, outdated ideas that lack the insight of this bookAttention is focused on some of the observations that throw new light on the environment, such as the temperature dependence of CO2 solubility in sea water and the rate at which natural processes remove it from the atmosphere, the inadequacy of photosynthesis to explain atmospheric oxygen, the hydrothermal origin of ocean salt, the capacity of the oceans as stores of heat, and fundamental limitations on possible ‘alternative’ energy sourcesThis book draws attention to two aspects of the environmental inertia of the oceans that have not previously been distinguished: the thermal effect of greenhouse warming — which has already been initiated and will become fully apparent on a hundred year time scale — and that the natural CO2 balance will be restored only in millions of yearsReviews: "The sense of seeking to convince the reader, however, lends the book a clear, decisive and ultimately highly readable tone. This book straddles the line between a textbook and a general-interest volume quite comfortably, making it suitable for anyone with a basic understanding of science that wants to place modern climate change in the context of the Earth's history." European Geosciences Union “This enjoyable book takes a long-term view of Earth's development as a habitable planet, this is a good initiation to a broad and important topic nevertheless, accessible to readers with a general science education.” chemistryworld Royal Society of Chemistry "This interesting book is a history of Earth's physical and chemical evolution, with implications for life at almost every stage. It is replete with original thinking and probing insight (and occasional important oversights). Throughout, one is not allowed to forget that Earth is a special place in the family of planets we call the Solar System." Henry Pollack Emeritus Professor of Geophysics University of Michigan “By itemizing the most important points at the end, the deliberate simplification serves for emphasis and as a useful starting point for discussion about the very gradual response by the Earth system to the rapid changes made by humans. Their abridged discussion and appraisal of planet Earth and of its resilience reveal some still unanswered questions about our environment. The book targets undergraduate students from all areas of study and anyone interested in the future of the planet.” Environmental Earth Sciences

One of the greatest mysteries in reconstructing the history of life on Earth has been the apparent absence of fossils dating back more than 550 million years. We have long known that fossils of sophisticated marine life-forms existed at the dawn of the Cambrian Period, but until recently scientists had found no traces of Precambrian fossils. The quest to find such traces began in earnest in the mid-1960s and culminated in one dramatic moment in 1993 when William Schopf identified fossilized microorganisms three and a half billion years old. This startling find opened up a vast period of time--some eighty-five percent of Earth's history--to new research and new ideas about life's beginnings. In this book, William Schopf, a pioneer of modern paleobiology, tells for the first time the exciting and fascinating story of the origins and earliest evolution of life and how that story has been unearthed. Gracefully blending his personal story of discovery with the basics needed to understand the astonishing science he describes, Schopf has produced an introduction to paleobiology for the interested reader as well as a primer for beginning students in the field. He considers such questions as how did primitive bacteria, pond scum, evolve into the complex life-forms found at the beginning of the Cambrian Period? How do scientists identify ancient microbes and what do these tiny creatures tell us about the environment of the early Earth? (And, in a related chapter, Schopf discusses his role in the controversy that swirls around recent claims of fossils in the famed meteorite from Mars.) Like all great teachers, Schopf teaches the non-specialist enough about his subject along the way that we can easily follow his descriptions of the geology, biology, and chemistry behind these discoveries. Anyone interested in the intriguing questions of the origins of life on Earth and how those origins have been discovered will find this story the best place to start.

Geologically speaking, southern Africa is without equal, a treasure house of valuable minerals with a geological history dating back some 3 600 million years. In addition, the evolution of plants and animals, especially mammals and dinosaurs, is well preserved in the region, which also probably has the best record of the origin of modern man. This book provides a fascinating insight into that remarkable history: how southern Africa, and to some extent the world, came to be the way it is - how its mineral deposits formed, its life evolved and its landscape was shaped. Along the way readers will be enthralled by accounts of the Big Bang that marked the beginning of time and matter, by drifting and colliding continents, folding and fracturing of rocks, meteors colliding with the Earth, the time when the Earth froze over, volcanic eruptions and the start of life. Anyone interested in the landscape and ecosystems in which we live will be intrigued to discover how our natural landmarks were formed, from the deserts of Namibia to the mountains of the Western Cape or Mpumalanga. Why is South Africa so rich in minerals? How did glacial deposits come to be found in the Karoo? Why did dinosaurs become extinct? How did mammals develop from reptiles? How closely related are we to the apes? The answers to many such questions are found in this lavishly illustrated volume. The authors also suggest how we can learn from the past in order to anticipate the future - for instance, to be able to predict earthquakes, deal with volcanic eruptions and meet the challenges of global climate change.

A manifesto for a radically different philosophy and practice of manufacture and environmentalism "Reduce, reuse, recycle" urge environmentalists; in other words, do more with less in order to minimize damage. But as this provocative, visionary book argues, this approach perpetuates a one-way, "cradle to grave" manufacturing model that dates to the Industrial Revolution and casts off as much as 90 percent of the materials it uses as waste, much of it toxic. Why not challenge the notion that human industry must inevitably damage the natural world? In fact, why not take nature itself as our model? A tree produces thousands of blossoms in order to create another tree, yet we do not consider its abundance wasteful but safe, beautiful, and highly effective; hence, "waste equals food" is the first principle the book sets forth. Products might be designed so that, after their useful life, they provide nourishment for something new-either as "biological nutrients" that safely re-enter the environment or as "technical nutrients" that circulate within closed-loop industrial cycles, without being "downcycled" into low-grade uses (as most "recyclables" now are). Elaborating their principles from experience (re)designing everything from carpeting to corporate campuses, William McDonough and Michael Braungart make an exciting and viable case for change.

By one of Britain's most gifted scientists: a magnificently daring and compulsively readable account of life on Earth (from the "big bang" to the advent of man), based entirely on the most original of all sources--the evidence of fossils. With excitement and driving intelligence, Richard Fortey guides us from the barren globe spinning in space, through the very earliest signs of life in the sulphurous hot springs and volcanic vents of the young planet, the appearance of cells, the slow creation of an atmosphere and the evolution of myriad forms of plants and animals that could then be sustained, including the magnificent era of the dinosaurs, and on to the last moment before the debut of Homo sapiens. Ranging across multiple scientific disciplines, explicating in wonderfully clear and refreshing prose their findings and arguments--about the origins of life, the causes of species extinctions and the first appearance of man--Fortey weaves this history out of the most delicate traceries left in rock, stone and earth. He also explains how, on each aspect of nature and life, scientists have reached the understanding we have today, who made the key discoveries, who their opponents were and why certain ideas won. Brimful of wit, fascinating personal experience and high scholarship, this book may well be our best introduction yet to the complex history of life on Earth. A Book-of-the-Month Club Main Selection With 32 pages of photographs

The birth and evolution of our solar system is a tantalizing mystery that may one day provide answers to the question of human origins. From Dust to Life tells the remarkable story of how the celestial objects that make up the solar system arose from common beginnings billions of years ago, and how scientists and philosophers have sought to unravel this mystery down through the centuries, piecing together the clues that enabled them to deduce the solar system's layout, its age, and the most likely way it formed. Drawing on the history of astronomy and the latest findings in astrophysics and the planetary sciences, John Chambers and Jacqueline Mitton offer the most up-to-date and authoritative treatment of the subject available. They examine how the evolving universe set the stage for the appearance of our Sun, and how the nebulous cloud of gas and dust that accompanied the young Sun eventually became the planets, comets, moons, and asteroids that exist today. They explore how each of the planets acquired its unique characteristics, why some are rocky and others gaseous, and why one planet in particular--our Earth--provided an almost perfect haven for the emergence of life. From Dust to Life is a must-read for anyone who desires to know more about how the solar system came to be. This enticing book takes readers to the very frontiers of modern research, engaging with the latest controversies and debates. It reveals how ongoing discoveries of far-distant extrasolar planets and planetary systems are transforming our understanding of our own solar system's astonishing history and its possible fate.

“A free-wheeling vehicle . . . an unforgettable ride!”—The New York Times Cat’s Cradle is Kurt Vonnegut’s satirical commentary on modern man and his madness. An apocalyptic tale of this planet’s ultimate fate, it features a midget as the protagonist, a complete, original theology created by a calypso singer, and a vision of the future that is at once blackly fatalistic and hilariously funny. A book that left an indelible mark on an entire generation of readers, Cat’s Cradle is one of the twentieth century’s most important works—and Vonnegut at his very best. “[Vonnegut is] an unimitative and inimitable social satirist.”—Harper’s Magazine “Our finest black-humorist . . . We laugh in self-defense.”—Atlantic Monthly