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In January, Canberra called on researchers around the world to save the Great Barrier Reef. Helpless in the face of its degradation, Australia released two million dollars (about 155 million CFP) to finance innovative ideas that could save it.
Bleaching episodes
The immense reef, which is the size of Japan or Italy, suffered in 2016 and 2017 two serious bleaching episodes. At issue: increases in the temperature of the water. Experts estimate that an area of 2,300 kilometers long could have suffered irreparable damage. The Australian government has pledged to fight climate change in general. But also to study shorter-term measures to give some respite to the largest coral ensemble in the world. It is also threatened by industrial and agricultural activities, as well as by the purple acanthaster, an invasive starfish, devouring corals.
![The acanthaster, a danger to the reefs. © cc Jon Hanson "title =" The acanthaster, a danger to the reefs. © cc Jon Hanson "/> </div>
<p> <span> © cc Jon Hanson </span> The acanthaster, a danger to the reefs </p>
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<h2> Six projects selected </h2>
<p> Six projects were selected from a total of 69 proposals They will be tested for their feasibility, the government has announced, and one of them plans to thin the clouds by injecting sea salt crystals, which increases their reflective capabilities. Australian Institute of Marine Sciences, stated that the proposal had real potential even though it might appear at first sight far-fetched. <em> "Our team is studying the use of a very fine tip to inject small water droplets at a rate of several billion per second </em> he explained to ABC media group <em> The water vaporizes and there are still particles of salt that will float in the air. inject them into the system, we can increase the amount of sunlight that is reflected. "</em> </p>
<h2> Biodegradable Film </h2>
<p> Another idea is an ultra-thin, biodegradable film containing reflective particles that would cover some of the reefs to protect them from heat. <em> "What's good about this film is that it's just the thickness of a molecule </em> said on ABC's Andrew Negri, another scientist at the institute. <em> You can swim through it and it will reform itself. "</em> Among the other selected tracks, the mbadive production of coral larvae, thanks to the 3D printing of surfaces to support their growth, or the sampling and relocation of larvae </div>
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