The Republic of Ireland is in the northwest of Europe. Northern Ireland occupies the northern part of the island, while the Republic of Ireland covers the remaining five-sixths of the island. It has four provinces: Leinster, Munster, Connacht, and Ulster. Its capital city is Dublin. Rolling hills and rugged coastlines characterize the Irish landscape. Its lush vegetation has earned Ireland the name "Emerald Isle." Ireland enjoys a temperate climate, with mild winters and cool summers.