Climate change is predicted to become a major threat to biodiversity in the 21st century, but accurate predictions and effective solutions have proved difficult to formulate(Terence P et al., 2011). Warmer and more acidic conditions inhibit coral calcification, carbonate precipitation, and submarine cementation; These effects are expected to reduce long-term rates of reef framework construction(Lauren et al., 2012).As global warming gradually becoming severe, it’s effects on the coral reefs also leads a critical concern about the diversity and quantity of coral reefs in Great Barrier. Great Barrier Reef is not only functioned as a beautiful landscape, but also an essential component of the coral reef ecosystem. Any change of could have a great …show more content…
Although there are many uncertain factor in the study of coral reefs, what we can sure is that the diversity and the quantity of Great Barrier Reef is decreasing under the global warming. No matter coral reefs’ future is more serious or it is optimistic, global warming’s effect on coral reefs is negative, especially for Great Barrier Reef. Disregard of coral reefs’ protection on coastal, there are still million of people relying on the tourism or other aspects of Great Barrier Reef. Contemplating policies that result in [CO2]atm above 500 ppm appears extremely risky for coral reefs and the tens of millions of people who depend on them directly, even under the most optimistic circumstances(Hoegh-Guldberg et al., 2007). People have to take action to stop the steps of global warming. There are many experts predict the future of coral reefs without human action, for example: Without the stabilization of greenhouse gas concentrations, it seems inevitable that many of the world’s coral reefs will become nonaccreting habitats—they will, based on most common definitions, cease to be coral reefs(Mark 2015; Barbara 2015); Eakin :Unless there is concerted action to reduce greenhouse gases,” he warns, “bleaching will become increasingly common and not just during extraordinary weather events”(Dennis
The world is changing. The environment is yelling at us, but is society ready to listen? Climate scientists, outdoor enthusiasts, environmentalists, and politicians all have an opinion on the state of the world’s climate. There is an argument from each side, agreeing or disagreeing with the claims of scientists who are trying to show the world what is happening. The fact is that humans are changing the climate, and it is not for the better. Glaciers are melting, the polar caps are shrinking and the ocean is becoming acidic. According to a report in Ocean News and Technology “Researchers have found that increasing ocean temperatures due to climate change will soon see reefs shrinking” (Ocean News and Technology). The Great Barrier Reef off the
Baker, Andrew c. “Climate change and coral reef bleaching: An ecological assessment of long-Term impacts, recovery trends and future outlook.” Estuarine, Coastal and Shelf Science, Academic Press, 17 Sept. 2008, www.sciencedirect.com/science/article/pii/S0272771408003405.
Leading scientists advise climate change will cause increases to the frequency and intensity of extreme weather events. Rising sea levels pose a significant risk to coastal communities, while the world’s oceans could become too acidic to support coral reefs and other calcifying marine organisms. Coral reefs contain only six per cent of the area of the Great Barrier Reef, yet they provide critical habitat and food for numerous species in the ecosystem. However, climate change has already impacted coral reefs in the Great Barrier Reef as corals are very helpless against its potential impacts. Eight mass coral bleaching events has occurred since 1979, triggered by unusually high water temperatures. And because of this, zooxanthellae (photosynthetic algae) leave their tissues and corals will have no more colours hence ‘bleaching’. Without the zooxanthellae, the corals that remain gradually starve to death. Once the coral dies, fish and a multitude of other marine species are soon affected. Rising sea levels and more frequent and intense storm surges will see more erosion of Australia’s coastline, causing community and residential
Coral reef is one of seawater features that have been affected by climatic changes. This has led to destruction through coral bleaching and increased mortality, especially due to the warming of the sea that causes an increase in sea water levels (Bakerl, Glynn & Riegl, 2008). An increase in global temperature also increases ocean acidification (Hoegh-Guldberg et al., 2007). These occurrences destroy reefs resulting in a significant drop in other sea organisms that depend on the reef. This implies that climatic changes are among the most destructive environmental elements affecting coral reef population in the world. To understand how climatic changes affect coral reef population, it is important to consider different ecological processes that occur due to climatic changes, the most common being the rise in global temperatures.
One argument is that many different things are contributing to the destruction of coral rather than climate change including overfishing, marine pollution and cyclones/hurricanes (World Climate Report, 2010). Although this may be true, the main causes of coral reef destruction still relates back to global warming. From 1985 to 2012, coral populations in the Great Barrier Reef have decreased by 50.7 per cent, with 48 per cent due to tropical cyclones, 42 per cent because of crown of thorns starfish (COTS) and 10 per cent directly due to bleaching (De 'ath et al., 2012). It has been indicated that due to global warming, there has been an increase in the number of tropical cyclones (Knutson et al., 2010). However, it has also been found that there is a possibility of cyclones actually mitigating coral bleaching (Baker et al., 2008; Schultz, 2012). With even just a 2°C increase in temperature the probability of COTS survival escalates by 240 per cent under certain conditions (Australian Institute of Marine Science, 2015). However, repeated bleaching events result in higher mortality rates. The Caribbean has been experiences continuous declines of reef sites due to repeated bleaching events (Baker et al., 2008). There is no doubt that oceans surrounding Australia have drastically warmed since 1910 (Bureau of Meteorology, 2014), and this warming affects the
For a long time, human overconsumption has depleted the earth’s resources and as a result, has led to the extinction of any important species in all eco systems. Coral Reefs are a major component to the ocean and its marine food chain. Just like many other ecosystems, the health of coral reefs in general is in a decline, for many reasons. Some reasons include but are not limited to: CO2 emissions, Overfishing, Explosive fishing, and Pollution. Coral Reefs are again one of the most diverse yet fragile ecosystems on the planet, they are also regarded to many marine biologists as “the rainforest of the oceans”. The reefs are not only important to the species from there itself but are also protecting species living near coral reefs. The decline in health won’t only result in harming species in the oceans but also many land creatures as well. The effects of over-fishing have/will break the food chain. Causing cases of over/undergrowth to many species linked with coral. However on the other hand, there are many organizations dedicated to protecting environments that are being threatened due to human activity.
Veron, J. E. N. A Reef in Time: The Great Barrier Reef from Beginning to End. Cambridge, MA:
Earth, an endless source of wonder and beauty, produced the Great Barrier Reef. Hustling and bustling, the Reef thrives like a busy city, teeming with life. Sheltering thousands, corals, maintain the well-being of the Reef; however, the world threatens its nature and delicacy. Populations growing and technological advances increasing, the world becomes more and more disconnected with the natural world, posing an alarming risk for the planet we live on. Although many organizations try to keep the oceans clean, because of human interference and unnatural occurrences, the Great Barrier Reef needs scientific help to adapt corals to new conditions for means of survival, putting pressure on the Australian government to save their ocean environment.
Coral reefs around the world are in danger. One of the causes is global warming, which has been increasing the temperature of the ocean water resulting in coral bleaching. This essay will focus on damage occurring to the Great Barrier Reef.
Climate change and Global Warming are out of control. This means that, no matter what policies, processes or actions are implemented, the Earth as we know it will never be the same again. There is significant evidence to support this hypothesis. The dilemma becomes whether we can limit the damage and adapt to a new status quo or not. Rising sea levels and the damage caused by this phenomenon has irreversible impacts on coastlines worldwide. Damage to sensitive reef systems cannot be fixed. This also has permanent impacts of the ecology not just of those immediate areas but also the ocean as a whole.
The Great barrier reef has had many recent hardships, including water pollutants and the increasing water temperature. Although it may be too late to save this particular reef we the people must not be so nearsighted to the
Richmond, R. H. 1993. “Coral Reefs: Present problems and Future Concerns Resulting form Anthropogenic Disturbance.” American Zoologist. V33: P524-536.
The leading natural cause of destruction among the coral reefs is global warming. Global warming causes the bleaching of coral reefs to occur. Bleaching is a response to stress by the coral reef that happens when the water becomes to warm. The coral then put out a brownish zooxanthelle which causes them to lose their color. Without the zooxanthelle, the corals cannot provide nourishment for itself and th...
Climate change has been affecting coral reefs in a negative way. If the climate continues to get warmer more of our coral reef become bleached, the structure of the reefs will become weak, and algae that keeps coral healthy will die. In the essay, “A framework for understanding Climate change impacts on Coral Reefs” by Joshua Clinner (2016), he emphasizes our climate change has become one of the long-term threats to coral reef. The article “Climate change and human impacts are damaging the world’s coral reefs”, which didn’t include an author (2001), states that the sea temperatures throughout the tropics has increased dramatically leaving much of the coral unhealthy. Spencer Hall (2008), discussed in his article “Coral Reefs and Climate Change”, how the increase in climate change puts a lot of stress on coral reefs because they are very sensitive to the change of temperature. Rigel B (2003) states in his essay, “Climate Change and Coral Reefs”, that coral reef has already been negatively impacted by
Coral reefs are well known for their colorful array of marvelous sights including a parade of exotic flora and fauna. They are said to be the foundation for a quarter of marine species, and are a crucial support for human life as well. The coral reef ecosystem is a diverse collection of species (ranging from microscopic to larger-than-life in size) that interact with each other and their physical environment. If any piece of a coral reef is harmed or removed the entire community can be seriously affected, even to the point of collapse. Unfortunately, human impact has resulted in long-term stresses that, unlike the short-term stress of natural disasters, coral reefs are not as capable to recover from. “Approximately half of the world’s coral reef ecosystem resources are considered by scientists to be in 'poor' or 'fair' condition and have declined over time due to several anthropogenic threats” (“Status of Corals” par. 2). Through poorly administered commercial practices, carelessness and ignorance among the common people, and human aggravated natural processes coral reef destruction has become a serious issue afflicting the world’s biodiversity and it’s intricate biosphere mechanics (“Human Impact on the Great Barrier Reef” 1) (“What Are Coral Reefs?” 1).