办事指南

Causality test could help preserve the natural world

点击量:   时间:2019-03-14 04:02:00

By Michael Marshall Editorial: “Cause test could end up in court“ IT’S one of the fundamental problems in science: when two events take place, can we tell whether one directly caused the other, or if the two follow a similar pattern for a different reason? Separating correlation and causation is notoriously difficult. People might become more tanned when they eat more ice cream, but that doesn’t mean ice cream gives you a tan; it probably just means it’s summer. In many cases the link between two variables seems more likely to be causal – for instance, smoking and lung cancer,