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"I'm pleased that some economists¹ and sociologists are beginning to talk about, for example, alternative measures of human well-being—alternative that is to GDP, on which the world runs."

So said John Sulston at the AAAS meeting in Washington on February 20th. He won the Nobel Prize for Physiology² or Medicine in 2002. He talked about connections among population, the environment and economics.

"We know that our current system of economics are (is) incomplete. And so we have for example, when we're considering food, we have huge wastage. There's an awful lot of food is thrown away. This you can call a spillover. It doesn't sort of enter into our economic system because it's a consequence of running things in a highly competitive way: the free market, global pricing and so on. These things lead to spillovers, which is the wastage of food.

"Now, you can take the view that this doesn't matter, and that's what we've done in the past, just as we've been energy profligate³ we've been food profligate. It does matter if we're coming up to the limit and we have to calculate how we're going to stop people starving or indeed give them a better life."

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1 economists
n.经济学家，经济专家( economist的名词复数 )
参考例句：
The sudden rise in share prices has confounded economists. 股价的突然上涨使经济学家大惑不解。 Foreign bankers and economists cautiously welcomed the minister's initiative. 外国银行家和经济学家对部长的倡议反应谨慎。来自《简明英汉词典》

2 physiology
n.生理学，生理机能
参考例句：
He bought a book about physiology.他买了一本生理学方面的书。 He was awarded the Nobel Prize for achievements in physiology.他因生理学方面的建树而被授予诺贝尔奖。

3 profligate
adj.行为不检的；n.放荡的人，浪子，肆意挥霍者
参考例句：
This young man had all the inclination to be a profligate of the first water.这个青年完全有可能成为十足的浪子。 Similarly Americans have been profligate in the handling of mineral resources.同样的，美国在处理矿产资源方面亦多浪费。