diverse people traverse a world map, depicting global migration due to economic, crisis, war, and environmental factors

migration refugees displacement globalization diaspora exodus immigration emigration asylum relocation conflict poverty opportunity climate war economy crisis borders journey resettlement integration diversity adaptation remittances braindrain pushfactors pullfactors demographics unemployment persecution discrimination humanitarian urbanization ruralurban mobility nomads expatriates seasonalworkers repatriation assimilation acculturation multiculturalism xenophobia humantrafficking smuggling geopolitics inequality sustainability resilience