It's a nuisance when it rains on a picnic. It's a tragedy when a tornado destroys a neighborhood. But our planet would be a very different place if it did not have extremes of weather. Some plants can grow only in hot, dry conditions; others require cold temperatures at certain times of year. And if the Arctic and Antarctic were less cold, melting ice would raise sea levels around the world and cause widespread flooding. This entertaining book in the You Wouldn't Want to Live Without series looks at how weather has shaped the world we live in.