#environmental technology.

[techexpertindia]

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[reasonsforhope]

A reef that has been degraded—whether by coral bleaching or disease—can’t support the same diversity of species and has a much quieter, less rich soundscape.

But new research from Woods Hole Oceanographic Institution shows that sound could potentially be a vital tool in the effort to restore coral reefs.

A healthy coral reef is noisy, full of the croaks, purrs, and grunts of various fishes and the crackling of snapping shrimp. Scientists believe that coral larvae use this symphony of sounds to help them determine where they should live and grow.

So, replaying healthy reef sounds can encourage new life in damaged or degraded reefs.

In a paper published last week in Royal Society Open Science, the Woods Hole researchers showed that broadcasting the soundscape of a healthy reef caused coral larvae to settle at significantly higher rates—up to seven times more often.

“What we’re showing is that you can actively induce coral settlement by playing sounds,” said Nadège Aoki, a doctoral candidate at WHOI and first author on the paper.

“You can go to a reef that is degraded in some way and add in the sounds of biological activity from a healthy reef, potentially helping this really important step in the coral life cycle.”

Corals are immobile as adults, so the larval stage is their only opportunity to select a good habitat. They swim or drift with the currents, seeking the right conditions to settle out of the water column and affix themselves to the seabed. Previous research has shown that chemical and light cues can influence that decision, but Aoki and her colleagues demonstrate that the soundscape also plays a major role in where corals settle.

The researchers ran the same experiment twice in the U.S. Virgin Islands in 2022. They collected larvae from Porites astreoides, a hardy species commonly known as mustard hill coral thanks to its lumpy shape and yellow color and distributed them in cups at three reefs along the southern coast of St. John. One of those reefs, Tektite, is relatively healthy. The other two, Cocoloba and Salt Pond, are more degraded with sparse coral cover and fewer fish.

At Salt Pond, Aoki and her colleagues installed an underwater speaker system and placed cups of larvae at distances of one, five, 10, and 30 meters from the speakers. They broadcast healthy reef sounds – recorded at Tektite in 2013 – for three nights. They set up similar installations at the other two reefs but didn’t play any sounds.

When they collected the cups, the researchers found that significantly more coral larvae had settled in the cups at Salt Pond than the other two reefs. On average, coral larvae settled at rates 1.7 times (and up to 7x) higher with the enriched sound environment.

The highest settlement rates were at five meters from the speakers, but even the cups placed 30 meters away had more larvae settling to the bottom than at Cocoloba and Tektite.

“The fact that settlement is consistently decreasing with distance from the speaker, when all else is kept constant, is particularly important because it shows that these changes are due to the added sound and not other factors,” said Aran Mooney, a marine biologist at WHOI and lead author on the paper.

“This gives us a new tool in the toolbox for potentially rebuilding a reef.”

Adding the audio is a process that would be relatively simple to implement, too.

“Replicating an acoustic environment is actually quite easy compared to replicating the reef chemical and microbial cues which also play a role in where corals choose to settle,” said Amy Apprill, a microbial ecologist at WHOI and a co-author on the paper.

“It appears to be one of the most scalable tools that can be applied to rebuild reefs, so we’re really excited about that potential.”"

-via Good News Network, March 17, 2024

[hope-for-the-planet]

It took 90 days for the fungi to degrade 27 per cent of the plastic tested, and about 140 days to completely break it down, after the samples were exposed to ultraviolet rays or heat.

Chemical engineering professor Ali Abbas, who supervised the research team, said the findings were significant.

"It's the highest degradation rate reported in the literature that we know in the world," the professor said. 

From ABC News Australia

[wachinyeya]

‘Milking’ the Air for Water: Zero-Energy Technique Doubles Survival Rate for Young Trees to Reforest After Fires https://www.goodnewsnetwork.org/milking-the-air-for-water-zero-energy-technique-doubles-survival-rate-for-young-trees-to-reforest-after-fires/

[sporesgalaxy]

no animal is evil

[swtechspecs]

Pretormin Environmental GX-8 Water Vaporator

Source: The Essential Guide to Weapons and Technology (Del Rey, 1997)

[science70]

Auto dump, Escondido, California, April 1972.

Photography: Gene Daniels

[toonfinatic]

They r using machines to put snow that drifted down back into the top of the slope. They have automatic snow making machines that know the weather snd only make fake snow when the conditions are good. They pack the snow. The cold snow. From the slopes, Into these things where it just Exists during summer without melting much and they use thst snow again next winter. They have a machine to measure the depth of snow so they knoe how much they need to add. They recycle snow like crazy they're obsessed with it, they're freaks about it

Who's they?. Finnish skiing centres

[netscapenavigator-official]

People all of a sudden asking EV and Green Tech journalists to stop bringing politics into their work in the wake of Elon Musk’s Nazi salute………

Like… have you all been living under a rock for the past decade?? I want you to point to one singular year, in the past 10+ years, across the entire fourth EV Era, where environmentalism and zero-emission vehicles haven’t been a political hot topic.

[wageronancap]

Anarchists actually do want the Mad Max future

Not the gangs

The cars that are (1) metal as fuck, designed without a hint of environmental regulation in mind; (2) low-tech enough to be maintained by the owner in their own garage; and (3) low-tech enough not to record and send information to technocratic corporatists and cops

[thepastisalreadywritten]

Chinchorro Mummies

Chinchorro mummies, including the example you mention from around 5020 BC, in the Atacama Desert, represent some of the oldest known intentionally preserved human remains in the world.

These mummies predate the more famous Egyptian mummies by thousands of years, showcasing the advanced mortuary practices of the Chinchorro people, a preceramic culture that lived along the coasts of present-day northern Chile and southern Peru.

The extreme dryness of the Atacama Desert, one of the driest places on Earth, played a crucial role in the natural preservation of these remains.

The lack of moisture in the environment inhibited the growth of bacteria, which are typically responsible for decomposition, allowing soft tissues, hair, and even clothing to survive for millennia.

What sets Chinchorro mummies apart is that this culture practiced intentional mummification, beginning as early as 5000 BC.

They developed intricate techniques that included removing the skin and organs, reinforcing the body with sticks and clay, and sometimes painting the exterior, often with black manganese or red ochre.

This practice suggests that the Chinchorro people had a profound respect for their dead, possibly seeing mummification as a way to maintain a connection with their ancestors.

The mummy in the photo is a poignant example of how the Chinchorro culture intertwined with the unique environmental conditions of the Atacama Desert to create a lasting legacy.

These preserved individuals offer a rare and invaluable glimpse into life and death in the ancient world, as well as the technological ingenuity of a civilization that thrived long before written history.

[techexpertindia]

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[hidesalvation]

Actually crying over an instagram reel of a guy rebuilding his beloved n line veloster after a bad accident and getting her back on the road after hours of repairs. This is what real love is

[dailyanarchistposts]

SAFETY AS ILLUSION- DANGER AS FRACTURE

1. Connected to the maintenance of life as living death is the second promise of the walls of civilization, the promise of safety.

2. Safety is always illusionary, as the countless attentats, and ever changing airport security protocols reveal- yet its impositions are very solid. Take the traditional wall around a town or settlement (which offers the promise of 'protection from the outside threat- the barbarian); the wall can be undermined, scaled, even broken to pieces if one has time and motivation, it crumbles with age and without constant maintenance and can be bypassed simply by seducing the one who guards it. Yet, to the individual inside the wall, the towering mass of bricks seems both impenetrable and inescapable, and represents a very material disconnect from that which is outside (one cannot for example even see what is outside the walls).

3. Thus the illusion of safety, is stripped bare, not as a form of protection, but as a form of containment; only those who live inside the walls can be convinced of safeties impenetrability- anyone with will enough to exist beyond the walls can see the paper tiger for what it really is- a trap to prevent escape and not a defense against entry.

4. Todays walls are much more diffuse; produced on and in the psychic level in the schools and social relations, the walls are built up inside the minds of individuals who for so many generations have lived inside of them and now no longer need not to see the outside in order to be afraid of it.

5. The illusion of safety has permeated every aspect of daily life, what 'safety' means is never concretely defined; aside from the columns of foot-soldiers patrolling the streets and CCTV at every corner, there is no discursive definition of what it might mean to be 'safe' and no concrete description of what the danger really is.

6. Even radical milieus have adopted these logics, with demands for 'safe space', policies defining safety, and the imagining that one can create places or communities free from the 'dangers' of the outside world.

7. Safety is always premised in imaginary dangers- usually the dangers of the outside, the 'other', or most often mortality. In the name of being kept alive any number of repressive measures become normalized.

8. To assist or allow suicide is still illegal in most of the world[4], the cages of the mental hospitals and prisons are filled with individuals who present a 'danger' to the life of themselves or others.

9. The demand for safety, always walks hand in hand with the forces of domination. Be that tradition of Radical Feminism which demanded 'safer streets' for women against masked and racialized attackers (and resulted in huge police incursions into poor and racialized communities), or the push by LGBT charities for hate crime legislation to protect individuals from street harassment/harm (and which has been used as a 'catchall legislation' that sees vast increases in incarceration and penal punishments for as little as saying 'fuck' in a public space).[5]

10. A fitting example of the anthropocentric obsession with safety is the 'house cat'; a being for whom the entirety of its existence is passed within the confined walls of an apartment. Premised on the idea that the dangers of the outside world; getting lost, starving to death, being run over by a car- are so terrifying (from the human captors point of view) as to justify the ultimate cruelty and curtailment of freedom. The cat is kept entirely 'safe', in a sterile environment which cannot harm her; and yet can one say honestly that a being for whom long nights, restless hunts, a shrugging disregard for humanity are normal character traits- the four walls of a human made prison will bring her happiness?

11. The 'house cat' also serves as fitting analogy for our own lives- the masters of domination keep us safely contained in the cities, the workplace, the homes; and we may wriggle a little, excited by the promise of the gym or the swimming pool- but to go outside, truly outside of their world is not only forbidden but now impossible. We welcome the crushing wheels of the car or the neighbors dog to carry us away- danger signifies freedom.

12. Individuals oscillate between captor and captive as they internalize and reproduce the logic of safety. From the cop on the street corner, to the parent warning its children of the dangers of pedophiles, to the liberal queer askewing violent or confrontational action and enforcing passivity in the name of 'inclusivity'.

13. Individuals of this epoch must face the fact that nowhere is 'safe', and that anyone promising to provide safety is in fact only (re)producing captivity.

14. When entangled with the enforcers of safety- (the police or their representatives) one soon becomes aware, that the illusion of safety is not some absolute safety from harm, but some imagined parameter of safety defined by the apparatchiks and algorithms of domination.

15. When falling fowl of the enforces of safety, one quickly realities that their version of 'keeping you safe' in fact means keeping you under control, or more often saving you from imagined danger so that they can inflict their own very real harm upon you.

16. One can for example be stopped for driving the car too fast, for passing a red light too early, for trying to jump from a bridge, for exploring and abandoned warehouse, or for engaging in a physical confrontation, in all the examples the behavior will first been defined as 'dangerous' and the narrative usually follows "we are here to protect you". Naturally the moment one is in the hands of those enforcers of safety, she can expect to be beaten, tortured, confined in a cage, sexually assaulted, humiliated, bullied and harmed in any myriad of unnameable ways.

17. "Keeping you safe" is synonymous with maintaining the monopoly of danger, harm and violence.

18. It benefits domination to have as many imaginary dangers as possible at play in any given moment. The more, and scarier the dangers, the greater the playground for imagining ways to ensure 'safety'.

19. The ever increasing number of dangers which the civilized order is happy to integrate into its logic- be that the threat of terrorism, ecological disaster, petty crime, homophobia, gendered violence or racism justifies an ever increasing number of punishments, containments and cages.

20. In many 'liberal democracies' we see how the response to popular awareness of structural oppression has been to criminalize any individuals who are accused of perpetuating it (ignoring the reality that the state is always the biggest perpetrator). From hate crime legislation protecting 'oppressed minorities' to attempts to ban networks like tor (because thats where terrorists live) we see time and time again that the promise to keep us free from danger, warped into the very real application of harm.

21. The illusion of safety rests on a very fluid understanding or what and who represent danger. In the logic of domination, we are presented daily with the idea, that a heavily armed gang, enshrined with the right to murder, kidnap, rape, and torture (the police) are 'safe' and that some kid running a red light or walking whilst black represents danger.

22. This is further complicated by status's awarded to individuals based on presumed compliance/non compliance- the refugee is 'safe' the illegal immigrant is dangerous, the steel worker is 'safe' the sex worker is dangerous, the law abiding citizen is 'safe' the criminal is dangerous. The arbitrary awarding of the right to safety is in fact the real danger.

23. Such arbitrary awarding, mean that In the name of safety we have armed hooligans patrolling the streets with assault rifles- and one can go to jail for carrying a kitchen knife from store to homestead.

24. Anyone who believes, we are safe inside the walls is delusional at best and more likely suicidal.

25. Some 'good citizens' (white, rich, cis, hetro, law abiding) might be able to uphold the lie that they are safe inside the walls (even if they discount the toxic fumes and radio waves slowly annihilating them); but even they will be forced to admit their mistake when in the name of 'safety' they cannot leave their home cage except to go their (re)productive one.

26. More than all of this though, why do we need to be safe? Why have we allowed a fear of danger to incubate inside our minds and proliferate in our praxis? Do we even really know what we mean when we say we want to be safe? We are trapped in illusions curated by tyrants.

27. Safety might be illusionary, but danger can be very real. Not the imaginary dangers domination feeds its subjects in order to keep them servile- but the danger which domination itself lives in constant fear of.

28. To break from captivity, is to accept danger into ones life- not the false dangers which preclude safety; but the real dangers of active confrontation with those who claim to provide it (safety). Accepting real danger, means arming conflictuality against the state, the police, technology, pacifistic ideologues, and perhaps even oneself- it is the realization that even if nothing is worth dying/going to jail for, these possibilities are perhaps less terrifying than remaining safe (i.e. captive).

29. To perpetuate the illusion of safety, into every aspect of life is always the goal of domination, every time one arms conflictuality, imbues danger, creates fracture; safety will rush to plug the breach. Just as one has almost no chance of destroying civilization, there is little hope of destroying safety in its totality; one can chip away, and expand ruptures but one must always be prepared that the ruptures will create new forms, and enforcements of safety- the battle will be an endless one.

30. The fight against safety in and of itself, creates danger for the one who pursues it.

31. If one is to truly realize the illusion of safety, and from this realization act in order to destroy it; she must first welcome danger as a constant friend and companion.

32. Through the process of becoming dangerous, she must face the very real dangers inside the walls (repression, assault, murder), and open her heart to all the possible imaginary ones outside of them.

33. Domination will be at every door when one opens herself fully to danger. It will close tight ranks all around and try to force safety at any cost on the one who seeks it.

34. Danger must embody all the fear of the unknown, all the visceral terror of the lands outside the walls, it must plunge deep into the darkness and never shine a light.

35. If danger spreads, 'safety' will wither.

[pezpenser205]

i miss when i could be excited about new technological innovations instead of going "wow how will rich people exploit poor people and cut moral corners with this."