If hot weather and ice cream sales are correlated (which they are), we cannot conclude that ice cream sale causes hot weather. Or I’ve must found a very tasty way of getting rid of winter depressions […]
I just read that the Danish Nationalist Party suggests we give more money to Bjørn Lomborg. This made me happy. Bjørn Lomborg is known for suggesting that just throwing money at the environmental problems with no regard for how we spend the money may not be right.
A lot of arguments these days come from people who does not understand the difference between correlation and causality. The CO2 argument is one of those. We notice that temperature has risen. At the same time (or a decade or so displaces, depending on who you ask) CO2 in the atmosphere has risen. This is correlation: knowing the value of one of the phenomena, allows us to predict the value of the other. […]