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Big Barrier Reef: A record wave can cause further coral bleaching Environment



The record wave of hot waves in northern Queensland will further increase above-average temperatures on seagoing vessels, which will increase the risk of further coral bleaching in the Great Barrier Reef next year, scientists say.

Dozens of record temperatures in November were recorded in this region, most along the coast of the cliff this week.

Most notable was in Cairns, where the following days reached temperatures of 42.6 ° C and 40.9 ° C. The maximum temperature on Tuesday surpassed the November record, which from 1900 stood at 5.4 ° C.

Extreme weather flooded more than 130 fires that Prime Minister Annastacia Palaszczuk said on Twitter, "It's not the fire we've seen in Queensland before."

"Heatwave records and fire weather is unprecedented," Palaszczuk said.

The dust storm, brought by strong western winds, covered the southern inland parts of the state. In the north, thousands of indigenous flying foxes died due to the high temperatures.

Reef scientist Terry Hughes of the Coral Center of Excellence at James Cook University said the summer hot wave was "terrifying," and at the beginning of next year, he raised the chances of coral death at the Great Barrier Reef.

Terry Hughes
(@ProfTerryHughes)

That's scary. Early summer, hot waves break down all records and raise the chances of another coral mortality episode #Great Barrier Reef next February / March. https://t.co/NQkoKhGW5P


November 26, 2018

The reef suffered subsequent sea waves, early 2016 and 2017, which killed corals and seriously damaged northern and central sections.

Hughes said bleaching the forecast was "upward trend," but scientists would not have a clear picture until the end of January.

Coral ecophysiologist Dr Neal Cantin, of the Australian Marine Science Institute, said the ocean temperatures remained below the levels recorded at the same time in 2015 and 2016, but warmer than the historical averages.

Cantin said the current heat wave "adds warmth and warmth to the ocean, and it certainly adds warmth to the system." This week we saw the record temperatures of the country we expect in the future with climate change and warming.

"We are in the monitoring phase. There is certainly the potential and how the local weather patterns in January and February will really decide whether we will or not.

"There are signs that we could avoid [bleaching] this summer. At this stage, it is less likely to be as bad as in 2016, but we will be ready to respond [if bleaching occurs]. "

The reality of climate change is diving

"The dangers I'm most worried about are heat waves," said Andrew Gissing, a Risk Frontiers disaster management expert.

"Australia must be better prepared for hot wave waves, and climate change is predicting it will become more serious."

Gissing said Guardian Australia people often respond to extreme weather events and natural disasters based on their previous experience. He said, however, that governments, businesses and individuals are often not prepared for the increasing severity and frequency of such events.

"We did a lot of work in Cyber ​​Debbie in Lismore, so many people hid in their homes because that's what they always did when they flooded, and they just did not realize that this flood is much bigger

"People really need to be focused on what's happening … how the nature of climate risks changes."

Gissing said businesses need to start investing in climate change mitigation and adaptation.

"It will be very difficult to alleviate many of them [predicted climate] impacts, so adaptation for the future will be really important. Especially when you overcome climate change on a growing population base.

"The [number of people living on the Queensland coast] is likely to double around 2030. Due to climate change, we are looking at a larger exposure [to disaster risks] there too. "


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