context1: Even Hurricane Katrina, with the devastation it caused, is described as not particularly powerful. In Australia, a new approach is needed to combat brush fires after the hottest year on record. If the Amazon tropical rainforest were to <strong>disappear</strong>, not only would an entire ecosystem <strong>vanish</strong>, but a valuable way of cooling the planet would go as well.
context2: There [are] a lot of sections in which a character like Gandalf <strong>disappears</strong> for a while. From memory – I mean, I haven't read it for a while now – but I think he references going off to meet with the White Council, who are actually characters like Galadriel and Saruman and people who we see in Lord of the Rings. He mysteriously <strong>vanishes</strong> for a while and then comes back, but we don't really know what goes on.