The population has been 'rising' [='growing'] dramatically/sharply/markedly.
a politician who is a 'rising star' in the Republican/Democratic Party
He was the leader of an armed 'rising' against the elected government.
(..) hidden a bit of silver from the bandits. What did you do?! They'll both be dead come winter. Cold winds are rising in the North. We need good men to help us. You can still help a lot more than you've harmed, Clegane. It's not too late for you. (..)2017 TvShow: Game of Thrones Title: Dragonstone Season: 7 Episode 1