Malthusian catastrophe

Sacred to the memory of the Rev Thomas Robert Malthus, long known to the lettered world by his admirable writings on the social branches of political economy, particularly by his essay on population. One of the best men and truest philosophers of any age or country, raised by native dignity of mind above the misrepresentation of the ignorant and the neglect of the great, : ) he lived a serene and happy life devoted to the pursuit and communication of truth. Supported by a calm but firm conviction of the usefulness of his labors. Content with ...

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Thomas Malthus, Thomas Malthus - Life, Thomas Malthus - Principle of Population, Thomas Malthus - The influence of Malthus, Thomas Malthus - Criticisms of Malthus, Thomas Malthus - Epitaph

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Malthus was born to a prosperous family. His father Daniel was a personal friend of the philosopher and sceptic David Hume and an acquaintance of Jean-Jacques Rousseau. The young Malthus was educated at home until his admission to Jesus College, Cambridge in 1784. There he studied many subjects and took prizes in English declamation, Latin and Greek. His principal subject was mathematics. He earned a masters degree in 1791 and was elected a fellow of Jesus College two years later. In 1797, he was ordained ...

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Thomas Malthus, Thomas Malthus - Life, Thomas Malthus - Principle of Population, Thomas Malthus - The influence of Malthus, Thomas Malthus - Criticisms of Malthus, Thomas Malthus - Epitaph

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Malthus's views were largely developed in reaction to the optimistic views of his father and his associates, notably Rousseau and William Godwin. Malthus's essay was also in reponse to the views of the Marquis de Condorcet. In An Essay on the Principle of Population, first published in 1798, Malthus made the famous prediction that population would outrun food supply, leading to a decrease in food per person. (Case & Fair, 1999: 790). "The power of population is so superior to the power of the earth to produce subsistence ...

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Thomas Malthus, Thomas Malthus - Life, Thomas Malthus - Principle of Population, Thomas Malthus - The influence of Malthus, Thomas Malthus - Criticisms of Malthus, Thomas Malthus - Epitaph

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William Godwin responded to Malthus' criticisms of his own arguments with On Population (1820). Other theoretical and political critiques of Malthus and Malthusian thinking emerged soon after the publication of the first Essay on Population, most notably in the work of the reformist industrialist Robert Owen , the essayist William Hazlitt and economists John Stuart Mill and Nassau William Senior (Two Lectures on Population , 1829), and moralist William Cobbett. Also of note wasTrue Law of Population (1845) by poli ...

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Thomas Malthus, Thomas Malthus - Life, Thomas Malthus - Principle of Population, Thomas Malthus - The influence of Malthus, Thomas Malthus - Criticisms of Malthus, Thomas Malthus - Epitaph

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William Godwin responded to Malthus' criticisms of his own arguments with On Population (1820). Other theoretical and political critiques of Malthus and Malthusian thinking emerged soon after the publication of the first Essay on Population, most notably in the work of the reformist industrialist Robert Owen , the essayist William Hazlitt (Malthus And The Liberties Of The Poor, 1807)and economists John Stuart Mill and Nassau William Senior (Two Lectures on Population , 1829), and moralist William Cobbett. Also of note wasTrue Law of Population (1845) by poli ...

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Thomas Malthus, Thomas Malthus - Life, Thomas Malthus - Principle of Population, Thomas Malthus - The influence of Malthus, Thomas Malthus - Criticisms of Malthus, Thomas Malthus - Epitaph

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In 1798, Thomas Malthus predicted that population growth would eventually outrun food supply, resulting in catastrophe. In 1968 Paul R. Ehrlich reignited this argument with his book The Population Bomb, which helped give the issue significant mindshare throughout the 1960s and 1970s. The dire predictions of Ehrlich and other neo-Malthusians were vigorously challenged by a number of economists, notably Julian Simon. On the opposite end of the spectrum there are a number of doomsayers who argue that today's low fertility rates will have ...

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World population, World population - When was six billion reached?, World population - Rate of population increase, World population - Forecast of world population, World population - Doomsayers, World population - Different continents

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Extrapolations from current knowledge to future energy development offer a choice of energy futures. Some predictions parallel the Malthusian catastrophe hypothesis. Numerous are complex models based scenarios as pioneered by Limits to Growth. Modelling approaches offer ways to analyse diverse strategies, and hopefully find a road to rapid and sustainable development of humanity. Short term energy crises are also a concern of energy development. Existing technologies for new energy sources, such as new renewable energy technolo ...

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Energy development, Energy development - Dependence on external energy sources, Energy development - Limitations to energy development, Energy development - Energy sources, Energy development - Fossil Fuels, Energy development - Wind Power, Energy development - Biomass, Energy development - Hydrogen Fuel, Energy development - Tidal power, Energy development - Solar power, Energy development - Geothermal Energy, Energy development - Hydroelectric energy, Energy development - Nuclear Energy, Energy development - Energy transportation, Energy development - Energy storage, Energy development - Historic energy development schemes, Energy development - Future energy development

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One key idea that the book Limits to Growth discusses is that if the rate of resource use is increasing, the amount of reserves cannot be calculated by simply taking the current known reserves and dividing by the current yearly usage, as is typically done to obtain a static index. For example, in 1972, the amount of chromium reserves was 775 million metric tons, of which 1.85 million metric tons were mined annually. (See exponential growth.) The static index is 418 years ( = 775 Mmt/1.85 Mmt/year), but the rate of chromium consumption ...

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Limits to Growth, Limits to Growth - Exponential reserve index, Limits to Growth - Criticism, Limits to Growth - Notes, Limits to Growth - ISBNs

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Limits to Growth attracted controversy as soon as it was published. Yale economist Henry C. Wallich labeled the book "a piece of irresponsible nonsense" in his March 13, 1972 Newsweek editorial. Wallich's main complaints are that the book was published as a publicity stunt with great fanfare at the Smithsonian in Washington, and that there was insufficient evidence for many of the variables used in the model. According to Wallich, "the quantitative content of the model comes for the authors' imagination, although they never reveal the equati ...

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Limits to Growth, Limits to Growth - Exponential reserve index, Limits to Growth - Criticism, Limits to Growth - Notes, Limits to Growth - ISBNs

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The world population is the total number of humans alive on the planet Earth at a given time. According to estimates published by the United States Census Bureau, the world population in June 2005 was ~6,450,000,000[1]. In line with population projections, this figure continues to grow at rates that are unprecedented prior to the 20th century. Approximately one fifth of all humans in the last six thousand years are currently alive. By some estimates, there are now one billion (thousand million) ...

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World population - When was six billion reached? World population - Rate of population increase World population - Forecast of world population World population - Doomsayers World population - Different continents

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Life expectancy is the average number of years remaining for a living being (or the average for a class of living beings) of a given age to live. Life expectancy is also called average life span or mean life span, in particular distinction to maximum life span (the life span of the most long lived members of a class of living beings). Although it is common usage to talk about life expectancy of any living being ranging from trees, insects, dogs, stroke victims, to mine workers, this article focuses on human life e ...

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Life expectancy - Overview Life expectancy - Increasing life expectancy Life expectancy - Life expectancy over human history Life expectancy - Timeline for humans Life expectancy - Variations in life expectancy in the world today Life expectancy - Life expectancy of animals and plants Life expectancy - Evolution and aging rate Life expectancy - Calculating life expectancy Life expectancy - Other meanings
Life expectancy - Increasing lifespan

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The existence of nearly all life on earth is fueled by light from the sun. Plants use the energy of sunlight to turn air into simple sugars—a process known as photosynthesis. These sugars are then used as the building blocks which allow the plant to grow. Animals use light from the sun indirectly, by either by eating plants or eating other animals that have eaten plants. The sugars produced by the plant are then broken down, releasing stored solar energy, and giving the animal the energy required for mo ...

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Sunlight, Sunlight - Life on Earth, Sunlight - Cultural aspects, Sunlight - Sunbathing, Sunlight - Adverse effects on health, Sunlight - Reference

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Energy sources are substances or processes with concentrations of energy at a high enough potential to be feasibly encouraged to convert to lower energy forms under human control for human benefit. Except for nuclear fuels, tidal energy and geothermal energy, all terrestrial energy sources are solar. And ultimately, solar energy itself is nuclear. Energy development - Fossil Fuels. See also:

Energy development, Energy development - Dependence on external energy sources, Energy development - Limitations to energy development, Energy development - Energy sources, Energy development - Fossil Fuels, Energy development - Wind Power, Energy development - Biomass, Energy development - Hydrogen Fuel, Energy development - Tidal power, Energy development - Solar power, Energy development - Geothermal Energy, Energy development - Hydroelectric energy, Energy development - Nuclear Energy, Energy development - Energy transportation, Energy development - Energy storage, Energy development - Historic energy development schemes, Energy development - Future energy development

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Using the natural logarithm, one can define more general exponential functions. The function defined for all a > 0, and all real numbers x, is called the exponential function with base a. Note that the equation above holds for a = e, since Exponential functions "translate between addition and multiplication" as is expressed in the following exponential laws: ...

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Exponential function, Exponential function - Properties, Exponential function - Derivatives and differential equations, Exponential function - Formal definition, Exponential function - Numerical value, Exponential function - On the complex plane, Exponential function - Matrices and Banach algebras, Exponential function - On Lie algebras, Exponential function - Double exponential function

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The phrase exponential growth is often used in nontechnical contexts to mean merely surprisingly fast growth. In a strictly mathematical sense, though, exponential growth has a precise meaning and does not necessarily mean that growth will happen quickly. In fact, a population can grow exponentially but at a very slow absolute rate (as when money in a bank account earns a very low interest rate, for instance), and can grow surprisingly fast without growing exponentially. And some functions, such as the logistic function, ...

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Exponential growth, Exponential growth - Intuition, Exponential growth - Technical details, Exponential growth - Examples of exponential growth, Exponential growth - Exponential stories, Exponential growth - Rice on a chessboard, Exponential growth - The water lily

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Social Darwinism - Darwinism and theories of social change. Theories of social evolution and cultural evolution are common in European thought. The Enlightenment thinkers who preceded Darwin often speculated that societies progressed through stages of increasing development. Earlier thinkers also emphasized conflict as an inherent feature of social life. Thomas Hobbes's 17th century portrayal of the state of nature seems analogous to the competition for natural resources described by Darwin. Social Darwinism is d ...

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Social Darwinism, Social Darwinism - History, Social Darwinism - Darwinism and theories of social change, Social Darwinism - Theorists and sources of Social Darwinism, Social Darwinism - Influence of Social Darwinists, Social Darwinism - Europe, Social Darwinism - United States, Social Darwinism - Criticisms and controversies, Social Darwinism - Modern legacy, Social Darwinism - Scholarly Secondary Sources, Social Darwinism - Primary Sources

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The Industrial Civilization is defined in this paper as the time from when energy production per capita rises above 30% of its peak to when it falls below 30% of its peak. This peak, according to the paper, occurred in 1979. This decline is predicted to occur in three stages: the Olduvai slope (1979–2000) the Olduvai slide (2000–2012) - 'may resemble the "Great Depression" of 1929 to 1939: unemployment, breadlines, and homel ...

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Olduvai theory, Olduvai theory - The Peak of World Oil Production and the Road to the Olduvai Gorge

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The last 70 years of the 20th century saw the biggest increase in the world's population in human history. The following table shows when each billion milestone was met: 1 billion reached in 1802. 125 years later... 2 billion reached in 1927. 34 years later... 3 billion reached in 1961. 13 years later... 4 billion reached in 1974. 13 years later... 5 billion reached in 1987. 12 yea ...

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World population, World population - When was six billion reached?, World population - Rate of population increase, World population - Forecast of world population, World population - Doomsayers, World population - Different continents

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Life expectancy before the 'health transition' of the modern era is thought to have varied between about 20 yrs and 35 years, depending upon particular circumstances. It has been suggested that life expectancy fell with the introduction of plant and animal domestication because of: higher infection rates caused by the increase in human settlement size and density, poorer nutrition due to reduced meat intake, and 'grea ...

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Life expectancy, Life expectancy - Overview, Life expectancy - Increasing life expectancy, Life expectancy - Life expectancy over human history, Life expectancy - Timeline for humans, Life expectancy - Variations in life expectancy in the world today, Life expectancy - Life expectancy of animals and plants, Life expectancy - Evolution and aging rate, Life expectancy - Calculating life expectancy, Life expectancy - Other meanings, Life expectancy - Increasing life expectancy

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Human civilization is currently somewhere below Type I, as it is able to harness only a portion of the energy that is available on Earth. The current state of human civilization has thus been named Type 0. Although intermediate values were not discussed in Kardashev's original proposal, Carl Sagan argued that they could easily be defined by interpolating the values given above. He calculated humanity's current civilization to be 0.7. He used a powe ...

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Kardashev scale, Kardashev scale - Usage and examples, Kardashev scale - Possible timeline, Kardashev scale - Function as a teleology, Kardashev scale - Weakness by supposition?, Kardashev scale - Counter-argument: abundance of alternative sources, Kardashev scale - Civilization implications, Kardashev scale - Contact constraints, Kardashev scale - Hypothetical extensions, Kardashev scale - Fictional extensions, Kardashev scale - Hypothetical futures, Kardashev scale - Type I, Kardashev scale - Type II, Kardashev scale - Type III, Kardashev scale - Type IV & V, Kardashev scale - Current values, Kardashev scale - Literature describing different Kardashev Types, Kardashev scale - Connections with sociology and anthropology, Kardashev scale - Notes

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Late Middle Ages - Britain. Main article: Britain in the Middle Ages The Battle of Bannockburn in 1314 effectively ended English aspirations of subjugating Scotland, and the Scottish were able to develop a strong state under the Stuarts. From 1337, England’s attention was largely directed towards France in the Hundred Years' War. Henry V’s victory at the Battle of Agincourt in 1415 briefly paved the way for a unification of the two kingdoms, but his son Henry VI, soon squandered all ...

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Late Middle Ages, Late Middle Ages - Historical events and politics, Late Middle Ages - Britain, Late Middle Ages - Scandinavia, Late Middle Ages - Western and Central Europe, Late Middle Ages - Southern Europe, Late Middle Ages - Eastern Europe, Late Middle Ages - Climate and agriculture, Late Middle Ages - Military developments, Late Middle Ages - Religion, Late Middle Ages - The Great Schism, Late Middle Ages - Reform movements, Late Middle Ages - Trade and commerce, Late Middle Ages - Science and technology, Late Middle Ages - Culture, Late Middle Ages - Art, Late Middle Ages - Architecture, Late Middle Ages - Literature, Late Middle Ages - Music, Late Middle Ages - Timeline

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