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上海市山西中学的小M同学问:每当去超市买洗衣粉,我总是习惯性地挑选标明“无磷配方”的,因为很多报纸杂志都一再声称含磷洗衣粉对环境会造成严重污染。可是,上次我和表姐一起去购物,她却坚持要买含磷洗衣粉,说是她从报纸上看到一篇报道指出,无磷洗衣粉比含磷洗衣粉更容易对环境产生不良影响。我们两个争持不下,结果不欢而散,东西也没买成。我想问问时博士,到底哪一种说法是正确的呢?为什么那些科学家经常会今天这样讲,明天那样说,把人都搞得糊里糊涂的,这不是有悖于科学精神吗?
The student M of Shanxi Middle School in Shanghai asked: Whenever I go to the supermarket to buy laundry detergent, I always habitually choose to mark “non-phosphorus formula” because many newspapers and magazines repeatedly claim that phosphorus-containing washing powder can cause serious pollution to the environment. . However, the last time I went shopping with my cousin, she insisted on buying phosphorus-containing washing powder. She said she saw from a newspaper report that phosphate-free washing powder is more likely to have adverse effects on the environment than phosphorus-containing washing powder. The two of us did not compete and the result broke up. We did not buy anything. When I ask Dr. Shi, what kind of argument is correct? Why are these scientists often talking about it today, saying it tomorrow, and confusing people? Is this not contrary to the spirit of science?