The World Wide Fund for Nature (WWF) has carried out several scientific studies on the Mesoamerican reef system, This reef system lies within the Caribbean sea and touches the coasts of Mexico, Belize, Guatemala and Honduras. It contains the largest barrier reef in the Western Hemisphere, stretching nearly 700 miles from the northern tip of the Yucatan Peninsula down through the Honduran Bay Islands. Dazzling arrays of different types of coral form this underwater wilderness, and provide homes and food to hundreds of fish species, marine turtles, and sharks. Along the shores, mangroves provide habitat for fish and shorebirds as well as protect coastal areas from the damage associated with hurricanes and strong storms. The scenic beauty of the region’s coastal areas makes it a prime tourist destination, which can put pressure on fragile reef environments. Further inland, rich soils attract large-scale agriculture, whose run-off can severely impact reefs. And increasing sea levels and water temperatures from climate change threaten corals and other marine animals such as turtles, as well as the communities that depend on the reef for their livelihoods and food security.