(CNN) -- Florida's Everglades National Park and rain forests in Madagascar have been added to a list of world heritage sites in danger.
The World Heritage Committee of the United Nations Educational, Scientific and Cultural Organization (UNESCO) announced the decision at its 34th annual meeting in Brasilia, Brazil.
Degradation of the Everglades has caused its addition to the list this year, with UNESCO reporting that water inflows have reduced up to 60 percent and high pollution levels are currently killing marine life.
The Everglades is the largest subtropical wilderness in the United States, with more than 1.5 million acres of estuaries, prairies, and shady stretches of pine. This is the second time the Everglades has been included on the list, the first time was between 1993 and 1997 because of damages caused by Hurricane Andrew.
The rain forests of Atsinanana in Madagascar make the list this year after illegal logging and hunting of endangered lemurs on the site. Due to the illegal exporting of logged timber, many rare species found in the rainforest are threatened, especially lemurs found only in Madagascar.
