Freeman Dyson
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Freeman John Dyson (Berkshire, 15 de dezembro de 1923 – 28 de fevereiro de 2020) foi um físico e matemático britânico.
- "Minha primeira heresia diz que todo o alarido sobre o aquecimento global é grosseiramente exagerado. Aqui estou me opondo à sagrada irmandade de especialistas em modelos climáticos e à multidão de cidadãos iludidos que acreditam nos números previstos pelos modelos de computador. Claro, eles dizem, eu não tenho graduação em meteorologia e, portanto, não estou qualificado para falar. Mas estudei os modelos climáticos e sei o que eles podem fazer. Os modelos resolvem as equações da dinâmica dos fluidos e descrevem muito bem os movimentos dos fluidos da atmosfera e dos oceanos. Eles fazem um trabalho muito pobre ao descrever as nuvens, a poeira, a química e a biologia dos campos, fazendas e florestas. Eles não começam a descrever o mundo real em que vivemos. O mundo real é enlameado e confuso e cheio de coisas que ainda não entendemos. É muito mais fácil para um cientista sentar-se em um prédio com ar-condicionado e rodar modelos de computador do que vestir roupas de inverno e medir o que realmente está acontecendo lá fora, nos pântanos e nas nuvens. É por isso que os especialistas em modelos climáticos acabam acreditando em seus próprios modelos."
- - My first heresy says that all the fuss about global warming is grossly exaggerated. Here I am opposing the holy brotherhood of climate model experts and the crowd of deluded citizens who believe the numbers predicted by the computer models. Of course, they say, I have no degree in meteorology and I am therefore not qualified to speak. But I have studied the climate models and I know what they can do. The models solve the equations of fluid dynamics, and they do a very good job of describing the fluid motions of the atmosphere and the oceans. They do a very poor job of describing the clouds, the dust, the chemistry and the biology of fields and farms and forests. They do not begin to describe the real world that we live in. The real world is muddy and messy and full of things that we do not yet understand. It is much easier for a scientist to sit in an air-conditioned building and run computer models, than to put on winter clothes and measure what is really happening outside in the swamps and the clouds. That is why the climate model experts end up believing their own models.
- - Freeman Dyson (2007) "pensamentos heréticos sobre ciência e sociedade", Edge, Agosto 8, 2007
- - My first heresy says that all the fuss about global warming is grossly exaggerated. Here I am opposing the holy brotherhood of climate model experts and the crowd of deluded citizens who believe the numbers predicted by the computer models. Of course, they say, I have no degree in meteorology and I am therefore not qualified to speak. But I have studied the climate models and I know what they can do. The models solve the equations of fluid dynamics, and they do a very good job of describing the fluid motions of the atmosphere and the oceans. They do a very poor job of describing the clouds, the dust, the chemistry and the biology of fields and farms and forests. They do not begin to describe the real world that we live in. The real world is muddy and messy and full of things that we do not yet understand. It is much easier for a scientist to sit in an air-conditioned building and run computer models, than to put on winter clothes and measure what is really happening outside in the swamps and the clouds. That is why the climate model experts end up believing their own models.