Tag: ritorni decrescenti
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Bollire una società
Here is how to boil a frog. Place the frog in a pan of tepid water. Raise the temperature so gradually that the frog does not realize it is being cooked. It may even fall into a stupor, as a person might in a hot bath. Eventually it will die. According to experiments done in…
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Controproducenti
Sadly, malaria is making a comeback in many parts of the Third World, due partly to insecticide-resistant mosquitoes and partly to complacency and political disintegration. Irrigation projects such as dams, reservoirs, and irrigation canals often work well in temperate climates. However, in tropical regions, they may backfire. They create large bodies of stationary water that…
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Abeti, tortricidi e feedback
Tree ring records show that the spruce budworm has been killing spruce and fir trees periodically in North America for at least 400 years. Until this century, no one much cared. The valuable tree for the lumber industry was the white pine. Spruce and fir were considered “weed species.” Eventually, however, the stands of virgin…
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I limiti dell’ingegno
Historical evidence would indicate that very few key inventions have been made by men who had to spend all their energy overcoming the immediate pressures of survival. Atomic energy was discovered in the laboratories of basic science by individuals unaware of any threat of fossil fuel depletion. The first genetic experiments, which led a hundred…
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Usurai
Siamo gli usurai del nostro pianeta: In a lecture to the Royal Academy of Engineering in May, Professor Rod Smith of Imperial College explained that a growth rate of 3% means economic activity doubles in 23 years. At 10% it takes just seven years. This we knew. But Smith takes it further. With a series…
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Alta Immobilità
Beyond a certain level of energy, used for the acceleration of any one person in traffic, the transportation industry immobilizes and enslaves the majority of nameless passengers, and provides only questionable marginal advantages to an Olympian elite. No new fuel, technology, or public control can keep the rising mobilization of society from producing increased harriedness,…
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Cori, cori, ma ‘ndo cori?
Un’aggiunta a quanto già calcolato. Prendiamo una distanza qualsiasi tra quelle elencate: A1 da Orte a Caserta Nord, lunghezza percorso 242,4 km. Prendiamo una tabella che dia un’idea dei consumi di un’auto di una certa cilindrata, che sia quindi capace di raggiungere i 150 km/h: ad esempio, una berlina da 1800 cc. Leggiamo che il…