"Ice melting from land into the ocean, warming waters that expand, a slowing Gulf Stream, and sinking land all contribute to sea level rise. Although a global phenomenon, the amount and speed of sea level rise varies by location, even between the East and the West Coasts. While the slowing Gulf Stream and sinking land only affect some areas, and at varying rates, ice melt and thermal expansion (warming waters that expand) are considered global causes of sea level rise everywhere."