A UN climate report released on Monday paints a dire picture of The great coral barrier future like the effects of climate change are fast change the coral reef. There’s a lot for the world to fear in the Intergovernmental Group on IPCC report on climate change, which states bluntly that the Great Barrier Reef is in crisis and experiencing severe impacts of climate change, with frequent and severe coral bleaching caused by warming ocean temperatures. The worst whitening event, in 2016, affected over 90% of the reef, and a punitive succession of money laundering incidents left the northern and middle part of the reef system in a “highly degraded state,” the report said.
The Great Barrier Reef is the largest living structure on the planet – so big, in fact that it is the only living being on earth visible from space. He stretches over 2,300 kilometers (1,400 miles) and east home for more more than 1,500 species of tropical fish, dolphins, whales, birds and even giants, century- old clams. Before the pandemic, it contributed 6.4 billion Australian dollars ($4.6 billion) to the economy all year largely through tourism, and generally supports around 64,000 jobs.
That bleaching continues along the reef is a virtual certainty, according to the IPCC. Perhaps even more Worryingly, the report suggests that it may simply be too late to stop bleaching completely. Even if the global community hit son goal of limit future warming at 1.5 degrees Celsius (2.7 degrees Fahrenheit) since pre-industrial times still wouldn’t be enough to prevent more frequent mass bleaching events, although it may reduce their occurrence, the IPCC found.
The report predicts that ocean warming and marine heat waves cause loss and degradation of shallow tropical coral reefs, leading to “widespread destruction” of coral reef ecosystems. The report points three previous mass whitenings events from 2016 to 2020 that caused significant loss of coral, and warns there has been ‘massive mortality’ of some species of coral.
For those who struggle to understand how the devastating bleaching is, diver Tony Fontes compares it to a forest fire under the ocean. Fonts, who recently retired after 40 years as a diving instructor on the Great Barrier Reef, remember the dive on reefs recently bleached and swimming in water turned milky white dead coral tissue. He would come out covered in vase.
“You sit down on the boat trying to wash it off and you just realize you have just swam across a reef that a couple of a few weeks ago was full of alive and vibrant and now a bushfire has gone through it and the coral is deadand the rest of marine life will be just Homework move on Where die off,” he says. “It’s really, really sad, heartbreaking experience.”
Yet, despite the menace imminent in its own backyard, Australia has fallen behind behind other rich countries in its reduction in greenhouse gas emissions performance and pledges. Last yeara climate think tank ranked Australia as the worst performing country on climate developed countries since the nations have committed themselves in the Paris Climate Agreement of 2015 to limit global warming up.
the issue is politically charged in Australia, which is one of the world’s largest exporters of coal and liquefied natural gas, and one of the highest greenhouse gas emitters per capita because of its strong dependence on charcoal power. Last month the government committed to spend another billion Australian dollars over nine years of improving the health of the reef, but critics argued that the money would do nothing to fix rising ocean temperatures, main menace for coral.
The results of inaction goes beyond ecological to economic: if laundering persists, IPCC estimates 10,000 jobs and 1 billion Australian dollars in revenue would be lost each time year declines in tourism alone.
around a billion people in the whole world on Coral reefs for their daily, says Scott Heron, a physicist professor and reef science expert at James Cook University. That’s why, he saysune failure urgently reduce greenhouse gas emissions could have devastating effects on humanity.
“It will affect real people and real people’s lives”, Heron says. “It’s going to make a huge change to not just people in Australia, but people who subsist on reef services. And so we really put that in a frame of putting in danger human life. »
Beyond the reef, the report warns that climate change lead at a push in heat- related deaths in Australia, extinction of certain animal species, and more Forest fires. The koalas are at risk of local extinctions due to increased drought and rising temperatures, the IPCC said. And rising sea levels and storm surges have led to the recent extinction of a species of rodent called Bramble Cay melomys, which lived on a remote sandbank in the northern Great Barrier Reef, according to the report.
frequency and severity of dangerous forest fire conditions are already increasing, due in party to climate change, says IPCC, citing catastrophic ‘black summer’ fires of late 2019 and early 2020 that killed at least 33 people and destroyed more over 3,000 homes. Even Australia’s famous eucalyptus trees, which are naturally resistant to the country’s seasonal fires, may not be able to withstand the ferocity and frequency of the announced fires, which could lead to the decimation of forests, the IPCC warned.
“We are seeing conditions that were really not projected for a few decades … and yet they appear about now, and therefore to some extent we may well be underestimating the risks associated with things like fires,” says Mark Howden, Vice-Chair of the IPCC, director of the institute for Climate, Energy and Disaster Solutions at the Australian National University.
Yet despite the grim predictions, Howden urges Australians not to lose hope and focus instead on solutions, mainly by reducing greenhouse gas emissions, but also reducing other reef stressors such as over-fishing. The report also provides detailed lists of climate adaptation strategies, such as improving building standards so that homes stay cool for potentially deadly heat waves.
“Does this report identify entire areas that Australians should to be concerned on? Absolutely, and that would be hard underestimate the completeness and importance of these impacts”, Howden says. “Is that also depict a whole series of things we can do on who take the sting out of worst case scenarios in the future? Absoutely.”