The Great Barrier Reef is a World Heritage Site, and one that is known to be in dire trouble. Not only does plastic pollution directly impact marine life, its production releases billions of kgs of CO 2 into the atmosphere every year. River discharges are the single biggest source of nutrients,providing significant pollution of the Reef during tropical flood events with over 90% of this pollution being sourced from farms. Nutrients from fertiliser pollution in the Reef’s waters also fuels massive outbreaks of the coral-eating crown-of-thorns starfish, which devour our coral reefs. Like gasoline on a fire, this pollution is amplifying other threats to the Great Barrier Reef, putting the ecosystem in jeopardy. The principal sources of pollution are nitrogen loss from fertiliser use on sugar cane lands, fine sediment loss from erosion on grazing lands, and pesticide losses … The Great Barrier Reef (GBR) is an extensive coral reef system off the northeast Australian coast comprising high value areas of coral reefs, seagrass meadows, and mangrove forests, and a range of iconic megafauna including whales, dugongs, turtles, sharks, dolphins, large fish, and valuable commercial, and recreational fisheries (Day and Dobbs, 2013). The Great Barrier Reef (GBR) is both a national marine park and a World Heritage Area. But next to the reef, a catchment of 400,000km2 is almost completely developed for … Together, they form the largest living structure on Earth. Pollution is a major threat to the Great Barrier Reef as there are many ways of pollution entering the reef. When the 2019 Townsville floodwaters reached the Great Barrier Reef, the flood plumes covered a large area of corals, even reaching 60 km out to sea. Some studies … More than 90% of this pollution Burns & J. Brodie. The Great Barrier Reef is the world's largest reef systems, stretching along the East coast of Australia from the northern tip down to the town of Bundaberg, is composed of roughly 2,900 individual reefs and 940 islands and cays that stretch for 2,300 kilometres (1,616 mi) and cover an area of approximately 344,400 square kilometres (133,000 sq mi). It can be made up of wood, metal, shopping containers, foam, rubber, glass and plastic. Recent AIMS research has demonstrated that microplastic pollution is widespread, even in the Great Barrier Reef. Pollution is a major threat to the Great Barrier Reef as there are many ways of pollution entering the reef. The Australian and Queensland governments are jointly investing approximately $200 million annually in the reef’s health. By stopping farm and land based pollution, we are giving our Great Barrier Reef the clean water it needs to restore its health. The Great Barrier Reef Marine Park Authority is the key management agency for the Great Barrier Reef and works with government, industries and communities to build reef resilience. In recent years, pollution from these rivers has become worse because there are fewer coastal wetlands.”. Great Barrier Reef Marine Park Authority Great Hydrocarbons—Environmental In fact, each of the 3000 individual reefs, along the entire 2000km length of the Great Barrier Reef, is a 50-100m high plateau of dead coral rubble that has built up over millennia. For example, approximately 3,500 shipping containers are lost at sea each year, posing a dangerous threat to The Great Barrier Reef was declared a marine park in 1976, and was listed as a World Heritage site in 1981. RELATED: Great Barrier Reef is worth $56 billion to Australia. Global recognition of its Outstanding Universal Value resulted in the listing of the 348 000 km 2 GBR World Heritage Area (WHA) by UNESCO in 1981. All these events are entirely natural and are part of life on the reef. These include shipping accidents, oil spills, surface runoff and the sheer number of tourists visiting the area. The Great Barrier Reef, which supports a vast array of marine life, has between 300 and 400 coral species and stretches for thousands of kilometers across the Australian coast. Graph of the Pollution in the Great Barrier Reef. It contributes billions of dollars and supports thousands of jobs The renowned coral reef scientist, Terry Hughes, said it was logical the IUCN had moved the Great Barrier Reef into the critical category after three bleaching events in five years. Construction, mining and tourism have had a detrimental effect on the state of the Reef of pollution the... Clues to the evolution and survival of the Great Barrier Reef ( GBR ) both... 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pollution in the great barrier reef

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