Not only all the marine life, the Great Barrier Reef is also a home to a great amount of underwater vegetation, with types of sea grasses and many types of algae. The climate of the Reef is quite warm as on the coast it is tropical. All aspects of the Great Barrier Reef are natural and none are man-made. The Reef has lately been through a lot of environmental damage such as climate change, bleaching, pollution and acidification. These threats have led to some of the best bits about the Great Barrier Reef dying. If the damage keeps up in the future we might not be able to call the Great Barrier Reef a special place anymore with it killing not only our animals but also our underwater vegetation and making our environment a bad place.
One sustainability issue in particular is fishing at the Great Barrier Reef. This isn't just a issue here it is also killing reefs all around the world. Fishing causes bleaching which is one of the main causes of global warming. Fishing also hurts our reef by killing marine life with threats against dugongs, turtles, inshore dolphins and lots more.