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

IEA warns Middle East conflict could spark worst energy crisis in decades

The ongoing conflict in the Middle East could trigger the worst energy crisis in decades, warned Fatih Birol, head of the International Energy Agency (IEA), who described the situation as “very serious.”

Speaking at the National Press Club in Canberra, Birol compared the current scenario to the oil crises of the 1970s, noting that during those events the world lost around five million barrels of oil per day in each crisis.

“Today, we have lost 11 million barrels per day—more than the two major oil shocks combined,” he said.

The Turkish economist referred to the conflict that began on February 28, following attacks by the United States and Israel against Iran, which have significantly disrupted global energy markets and driven oil prices higher.

Birol warned that the global economy is facing a “very, very serious threat” and expressed hope that the crisis will be resolved soon.

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“No country will be immune to the effects of this crisis if it continues in this direction. Global efforts are urgently needed,” he emphasized.

International

Colombian Air Force Hercules plane crashes during takeoff with troops onboard

A Lockheed C-130 Hercules operated by the Colombian Air Force was involved in a “tragic accident” while taking off from Puerto Leguízamo, in the Putumayo department of southern Colombia, as it was transporting troops, Defense Minister Pedro Sánchez reported on Monday.

The minister stated on social media that the exact number of victims and the causes of the crash have not yet been determined. He also extended his condolences to the families affected and urged the public to avoid speculation until official information is confirmed.

“This is a deeply painful event for the country. Our prayers are with the victims and their families,” Sánchez said, adding that emergency protocols have been activated and an investigation is underway.

Meanwhile, President Gustavo Petro expressed hope that there would be no fatalities in what he described as a “horrific accident that should not have happened.”

Petro also highlighted ongoing efforts to modernize the country’s air fleet and reiterated the need to acquire new helicopters and transport aircraft to strengthen military mobility, particularly in remote regions.

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According to local media reports, approximately 110 soldiers were on board the aircraft. So far, at least 20 injured military personnel have been rescued.

International

Paris prosecutors alert U.S. over alleged deepfake strategy linked to Elon Musk

The Paris Prosecutor’s Office said on Saturday that it had alerted authorities in the United States over suspicions that tech entrepreneur Elon Musk may have encouraged the spread of sexualized deepfake content on the social platform X to artificially boost the company’s valuation.

According to prosecutors, the controversy surrounding explicit AI-generated videos—reportedly linked to Grok, the platform’s artificial intelligence system—may have been deliberately triggered to increase the market value of X and X AI.

The office added that the alleged strategy could be tied to the planned June 2026 public listing of a new entity formed through the merger of SpaceX and X AI.

French authorities said they contacted the U.S. Department of Justice as well as legal representatives at the U.S. Securities and Exchange Commission (SEC) earlier this week to share their concerns.

Responding on X in French to a report about the case, Musk referred to French prosecutors using an offensive term.

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When contacted, X’s legal representative in France did not immediately comment.

Grok, the platform’s AI system, has its own account on X, allowing users to interact with it or request content generation. For a period, users were able to tag the bot in posts to generate or edit images, a feature that may have facilitated the spread of such material.