Marie's Seas is a term used to describe the Mediterranean Sea, which is located in the Northern Hemisphere and is bordered by Europe, Africa, and the Middle East. The Mediterranean Sea is an important body of water for many countries, as it provides access to trade routes and is home to a variety of marine life. The acronym MERS stands for Mediterranean Environmental Research Station, which is a research station located in the Mediterranean Sea that studies the effects of climate change on the region.