The Emerald Isle is often how Ireland is referred to, due to the partiularly lush, green vistas which are common there. A great deal of the land is covered with pasture and some semi-tropical plants and able to survive in the relatively temperate weather. Ireland is recognised for tis excellence in scientific research, and contributions to advances in fields such as fiber optics. Irish folk music and dance are widely appreciated, and visitors arrive in great numbers to experience Irish hospitality and the beautiful countryside.