International

Chilean scientist plans to clean up mining with ‘metal eating’ bacteria

AFP

Starving microorganisms capable of surviving in extreme conditions have already managed to “eat” a nail in just three days.

In Chile, a scientist is testing “metal-eating” bacteria she hopes could help clean up the country’s highly-polluting mining industry.

In her laboratory in Antofagasta, an industrial town 1,100-kilometers north of Santiago, 33-year-old biotechnologist Nadac Reales has been carrying out tests with extremophiles — organisms that live in extreme environments.

Reales came up with her idea while still at university as she was conducting tests at a mining plant using microorganisms to improve the extraction of copper.

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“I realized there were various needs in the mining industry, for example what happened with the metallic waste,” she told AFP.

Some metals can be recycled in smelting plants but others, such as HGV truck hoppers that can hold 50 tons of rock, cannot and are often discarded in Chile’s Atacama desert, home to the majority of the country’s mining industry.

Chile is the world’s largest producer of copper, which accounts for up to 15 percent of the country’s GDP, resulting in a lot of mining waste that pollutes the environment.

In her research, Reales, who now runs her own company Rudanac Biotec, concentrated on iron-oxidizing bacteria called Leptospirillum.

She extracted the bacteria from the Tatio geysers located 4,200 meters above sea level, some 350 kilometers from Antofagasta.

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The bacteria “live in an acidic environment that is practically unaffected by relatively high concentrations of most metals,” she said.

“At first the bacteria took two months to disintegrate a nail.”

But when starved, they had to adapt and find a way of feeding themselves.

After two years of trials, the result was a marked increase in the speed at which the bacteria “ate,” devouring a nail in just three days.

– Surprising benefit –

Reales says “chemical and microbiological tests” have proved the bacteria are not harmful to humans or the environment.

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“We’ve always seen a lot of potential in this project that has already passed an important test in the laboratory,” said Drina Vejar, a microbiologist who is part of a four-person team working with Reales.

“It’s really necessary at this time when we have to plan for a more sustainable development, especially in all these cities with so many polluting industries.”

Mining companies have shown interest in the research but while Rudanac Biotec previously benefitted from a state fund for start-ups, the company needs investment to move on to its next stage of trials.

Reales says she needs money to see if her method will “eat a medium sized beam or a hopper.”

When the disintegration process is complete, what remains is a reddish liquid residue, a solution known as a lixiviant that itself possesses a surprising quality.

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“After biodisintegration the product generated (the liquid) can improve the recovery of copper in a process called hydrometallurgy,” said Reales.

Essentially, the liquid residue can be used to extract copper from rock in a more sustainable manner than the current use of chemicals in leaching.

Reales says it means green mining is “totally feasible.”

That is of great interest to mining companies that could use it to improve their large scale extraction of copper or other minerals, while also reducing their pollution, something they are required to do by law.

Reales recently submitted a request for an international patent for her technology, but more importantly she hopes it will help reduce metal waste blotting the landscape in the mining regions of her country.

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International

Mexico leads global cases of enforced disappearances, UN report finds

Mexico accounts for the highest number of urgent actions related to enforced disappearances worldwide, according to the latest report by the UN Committee on Enforced Disappearances.

The report, released by I(dh)eas, indicates that Mexico has accumulated 819 cases between 2012 and February 2026, representing 38% of the global total.

In the past five months alone, 40 new urgent requests have been recorded — more than one-third of all such actions worldwide during that period.

The report warns that this trend reflects a structural problem, as the urgent action mechanism — originally intended as an exceptional measure — has become routine in Mexico.

Although the Mexican state formally complies with response deadlines, the Committee identified significant shortcomings in the implementation of these measures. These include the lack of comprehensive search plans, delays in key investigative procedures such as video surveillance and phone data analysis, and insufficient inquiries into possible links involving state agents.

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The report also highlights inadequate protection for relatives and individuals involved in search efforts, including cases of reprisals.

Among the most serious incidents documented is the disappearance of a father who had denounced alleged involvement of authorities in his son’s case in the state of Guanajuato.

The accumulation of cases could lead to the application of Article 34 of the Convention, which would allow for the launch of an international investigation into systematic enforced disappearances.

Geographically, the state of Chiapas accounts for 30% of the new urgent actions, many of them linked to collective disappearances of migrants.

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International

Le pape Léon XIV appelle à relancer le dialogue pour une paix au Moyen-Orient

Le pape Léon XIV s’est entretenu par téléphone ce vendredi avec le président d’Israël, Isaac Herzog, soulignant la « nécessité de rouvrir » les canaux de dialogue afin de parvenir à une « paix juste » au Moyen-Orient.

Selon un communiqué du Vatican, les deux dirigeants ont insisté sur l’importance de relancer tous les mécanismes diplomatiques pour mettre fin au conflit en cours et œuvrer en faveur d’une paix durable dans la région.

Le communiqué précise également que les discussions ont porté sur la protection des populations civiles et sur le respect du droit international et humanitaire.

Cet échange intervient dans le contexte de la Semaine sainte, cinq jours après un incident à Jérusalem, où la police israélienne avait empêché le cardinal Pierbattista Pizzaballa de célébrer la messe du Dimanche des Rameaux au Saint-Sépulcre.

Le lendemain, le secrétaire d’État du Vatican, Pietro Parolin, avait convoqué l’ambassadeur israélien auprès du Saint-Siège, Yaron Sideman, pour exprimer le mécontentement du Vatican face à cet incident qualifié de « regrettable ».

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Cette situation avait suscité une vive réaction internationale, poussant le Premier ministre israélien Benjamin Netanyahu à intervenir pour assurer que le cardinal pourrait accéder au lieu saint.

De son côté, Herzog a confirmé l’échange sur son compte X, indiquant que les discussions ont également porté sur des sujets régionaux, notamment la guerre en Iran et la situation au Liban.

Le pape, d’origine américaine, participe actuellement à sa première Semaine sainte depuis son élection et doit présider ce soir le chemin de croix au Vatican.

International

Devotees in Philippines mark Holy Week with extreme rituals despite rising costs

Despite rising fuel prices driven by the conflict in the Middle East, thousands of devotees in Philippines took part this year in one of the country’s most intense Holy Week traditions.

In the city of San Fernando, located in Pampanga province, dozens of bare-chested penitents with covered faces walked barefoot along dusty streets, whipping their backs with bamboo lashes as part of a ritual that can draw up to 12,000 local and foreign visitors.

Journalists from Agence France-Presse reported seeing participants piercing their skin with glass shards attached to small wooden paddles to ensure bleeding during the ceremony — an act believed to atone for sins and seek divine intervention.

“I do this to pray for the healing of my seven-month-old baby, who is suffering from pneumonia,” said a devotee identified as John David at the start of the procession.

The 49-year-old participant explained that the practice runs in his family. “My grandfather started this, then my father, and now it’s my turn. I have witnessed healing miracles over the years through this act of faith,” he said.

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Many attendees traveled for hours to witness the climax of the ritual, in which some penitents allow nails, measuring about seven centimeters, to be driven into their hands before being raised on crosses in a reenactment of crucifixion.