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

Bolivia Orders Three Investigations Into Deadly Military Plane Crash

Bolivia’s Defense Minister Marcelo Salinas announced Monday that three separate investigations will be conducted into Friday’s crash of a military cargo aircraft at El Alto International Airport, near La Paz, which left at least 22 people dead.

The Hercules aircraft, operated by the Fuerza Aérea Boliviana (FAB), was transporting cash intended for the Central Bank of Bolivia when it overshot the runway after landing from the city of Santa Cruz. The plane reportedly traveled nearly one kilometer beyond the airport perimeter.

The incident sparked chaotic scenes, with individuals attempting to collect scattered banknotes. Authorities detained 51 people in the aftermath, and the government declared three days of national mourning.

Multiple Investigations Underway

The first inquiry is being led by a military board from the Bolivian Air Force, which has already taken custody of the aircraft’s black box for analysis.

Minister Salinas said two additional investigations will follow — one conducted by the insurance company and another by the aircraft’s manufacturer.

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“At least two more investigations will come, that of the insurance company and that of the aircraft manufacturer,” Salinas said during a press conference in Santa Cruz.

He cautioned that the investigative process could take between three and six months, noting that the black box cannot be opened in Bolivia due to the lack of specialized laboratories for analysis.

Awaiting Official Findings

Salinas stressed that the FAB investigative board is the highest authority in the case and urged the public to wait for its conclusions to avoid speculation about the causes of the crash.

He also confirmed that the government has contacted the families of the 22 victims and the 37 injured, as well as the owners of 15 damaged vehicles, to coordinate procedures with the insurer and cover the corresponding expenses.

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International

Mexico Calls for Immediate Probe After National Dies in ICE Custody

Mexico’s Secretaría de Relaciones Exteriores (SRE) on Monday called on U.S. authorities to conduct an “immediate and thorough” investigation into the death of a Mexican national while in custody of U.S. Immigration and Customs Enforcement (ICE) at a processing facility in California.

In a statement, the Mexican government described the death as “regrettable” and urged U.S. officials to clarify the circumstances surrounding the case in order to “determine responsibilities and ensure that such events do not happen again.”

Death at Adelanto Processing Center

According to available information, the Mexican citizen died at the Adelanto Processing Center in California while under ICE custody. Authorities have not yet released the individual’s identity or the cause of death.

Following the incident, Mexico’s Foreign Ministry formally requested “detailed information” from U.S. authorities, including the detainee’s medical records and custody reports.

Consular Assistance Activated

The Mexican Consulate in San Bernardino, California, has activated consular assistance protocols to provide ongoing support to the deceased’s family. Officials have contacted relatives to express condolences and offer legal guidance, as well as assistance with the necessary procedures to repatriate the remains.

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“The handling of situations like this and the establishment of mechanisms to resolve them are priorities for the Government of Mexico,” the Foreign Ministry said, adding that it will formally request an investigation into any systemic conditions that may have contributed to such incidents.

Local Mexican media reported that seven Mexican nationals died while in ICE detention last year — the highest number recorded since the agency was created.

International

Anti-ICE Billboard Campaign Targets Immigration Spending in 31 U.S. Cities

More than 200 billboards criticizing U.S. Immigration and Customs Enforcement (ICE) began appearing Monday in 31 cities across the United States, including Miami, as part of a campaign highlighting the high cost of immigration enforcement operations for taxpayers.

The initiative, titled “ICE Costs Us,” was launched by the civil rights organization Mijente and will run for four weeks.

Criticism of Spending and Enforcement Tactics

The billboards feature images of ICE agents during arrests or carrying military-style weapons. According to the organization, spending on military-grade equipment for the agency has increased by 600 percent in recent years.

Several signs display messages such as:
“Your taxes are being wasted” and “ICE’s cruelty costs you $28 billion,” referring to the agency’s annual budget.

In a statement, Marisa Franco, co-founder of the Mijente Support Committee, said:
“For too long, our government has prioritized building cages and investing billions in an immigration enforcement apparatus that has left families torn apart and communities terrified.”

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She added that “Millions of Americans are living paycheck to paycheck, yet this violent agency continues operating with a blank check. These decisions do not make us safer nor improve our economic security. Our billboards highlight these choices and demand a different path.”

Budget Debate and Medicaid Comparison

The campaign also draws a comparison between ICE’s funding and the estimated 17 million people who could lose health coverage under Medicaid due to federal budget cuts under President Donald Trump.

Other billboard messages seen in various cities include:
“They get billions to beat us; we get layoffs and rising rents” and “Funding ICE is a fast track to fascism.”

Organizers say the goal is to spark public debate about the allocation of federal funds for immigration enforcement and the broader economic and social impact of such policies on communities nationwide.