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CORAL BLEACHED FOR two consecutive years at Australia’s Great Barrier Reef has “zero prospect” of recovery, scientists warned today, as they confirmed the site has again been hit by warming sea temperatures.
Researchers said last month they were detecting another round of mass bleaching this year after a severe event in 2016, and their fears were confirmed after aerial surveys of the entire 2,300-kilometre long bio-diverse reef.
Last year, the northern areas of the World Heritage-listed area were hardest hit, with the middle-third now experiencing the worst effects.
“Bleached corals are not necessarily dead corals, but in the severe central region we anticipate high levels of coral loss,” said James Kerry, a marine biologist at James Cook University who led the aerial surveys.
It takes at least a decade for a full recovery of even the fastest growing corals, so mass bleaching events 12 months apart offer zero prospect of recovery for reefs that were damaged in 2016.
It is the fourth time coral bleaching – where stressed corals expel the algae that live in their tissue and provide them with food – has hit the reef after previous events in 1998 and 2002.
Record temperatures
“The combined impact of this back-to-back bleaching stretches for 1,500 kilometres, leaving only the southern third unscathed,” said Terry Hughes, head of the Centre of Excellence for Coral Reef Studies, also at James Cook University.
The bleaching is caused by record-breaking temperatures driven by global warming.
“This year, 2017, we are seeing mass bleaching, even without the assistance of El Nino conditions,” he added, referring to the natural climate cycle in the Pacific Ocean.
The Barrier Reef is already under pressure from farming run-off, development and the crown-of-thorns starfish.
It was also recently hammered by category four Cyclone Debbie, which barrelled through the region last month, mostly affecting southern parts around the Whitsunday islands which largely escaped the bleaching.
The extent of the destruction wrought by Debbie is not yet known, although scientists have said damage could range from minor to severe.
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Damage caused by Cyclone Debbie in central Lismore. Nur Photo / SIPA USA/PA Images
Nur Photo / SIPA USA/PA Images / SIPA USA/PA Images
Queensland Parks and Wildlife Service and the Great Barrier Reef Marine Park Authority began a study last week to determine how extensive it might be and have already found extensive pulverised coral at popular snorkelling spots.
“The feedback that’s coming back is the more sheltered areas have come out a bit better, but they all seem to have suffered some form of damage,” Association of Marine Park Tourism Operators’ Brendon Robinson told the Australian Broadcasting Corporation.
The Whitsundays is one of the reef’s tourist hotspots, attracting more than 40% of total visitors to the iconic marine ecosystem.
Multiple impacts
Hughes warned rising temperatures could see more bleaching events.
“Clearly the reef is struggling with multiple impacts. Without a doubt the most pressing of these is global warming,” he said.
“As temperatures continue to rise the corals will experience more and more of these events. One degree Celsius of warming so far has already caused four events in the past 19 years.
“Ultimately, we need to cut carbon emissions, and the window to do so is rapidly closing.”
The world’s nations agreed in Paris in 2015 to limit average warming to two degrees Celsius over pre-industrial levels, by curbing fossil fuel burning.
Canberra in 2015 narrowly avoided UNESCO putting the reef on its endangered list, and has committed more than Aus$2.0 billion to protect it over the next decade.
If a pre school is short 1 plaster in a box of 10,thats an automatic fail in 1st aid compliance on the report,the current report will just say 1st aid fail,it does say its because its short of a plaster. Thats hardly fair,i hope the new reports actuly report the proper issues discovered in pre schools that are not up to proper standards. Will the new laws assist the low paid staff with proper working hours,pay and entitlements ??
Couldn’t agree more. I personally know of a case where the preschool inspector complained there were too many varieties of plasters & dressings. All the new regulations will not prevent nasty people who don’t like children been mean to them like we saw on the Prime Time programme.
New legislation is all well & good. Maintaining appropriate carer:child ratios, training staff properly & paying them a credible wage is more paramount, imo…
Perhaps some regulation for childminders too, who look after children in their own home. I have come across many wonderful childminders who treat the children they look after impeccably, however they are not all the same. This is a largely unregulated area and I feel there should be some sort of inspections/reports similar to the UK.
No one cares for a
Child better that his or her parent but unfortunately during the credit tiger we lost the run of ourselves and required 2
Parents working to support ridiculous mortgages and the introduction of the chain crèche with high running costs etc
The whole country needs an overhaul not just childcare and plenty of crèche’s who pay staff fairly and treat children well they are just harder to find because the pull of the larger crèche with the so called reputation is a greater pull ….inspectors need to inspect what’s really important not tick a flip board actually sit in the crèche for few days to observe properly
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