From my latest BBC Earth article You might think that being religious would make you more likely to care about the natural world. But the truth is not so simple. Eight out of 10 people around the world consider themselves religious. That figure shows that, while in many countries religion is not as dominant as it once was, it still has a huge influence on us. What does that mean for the environmental movement? Does a belief in God or the supernatural make people more or less likely to take care of animals and the environment? It is easy to make up stories to answer this question. You might say that many religions push the idea that the world will soon come to an end, in which case surely they encourage a "let it burn" ethos: what does it matter if the rainforest gets cut down, if the Rapture is next week? But just as plausibly, you might point out that many religions are big on kindness, and some such as Jainism even forbid killing animals. This should nudge their followers ...