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.
“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.
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.
“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.
“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.
International
Meta Says Russia Seeks to Ban WhatsApp for Defending Secure Communication
U.S. tech giant Meta, the parent company of WhatsApp, said that Russia is seeking to ban the messaging app because it “challenges government attempts to violate people’s right to secure communication.”
Russian authorities have encouraged citizens to switch to state-backed applications, and in August they already blocked WhatsApp’s calling feature.
On Friday, the communications regulator Roskomnadzor claimed that the platform was being used to “organize and carry out terrorist acts in the country, recruit perpetrators, and facilitate fraud and other crimes.”
“If the messaging service does not comply with Russian law, it will be completely blocked,” the regulator warned.
WhatsApp remains one of Russia’s most widely used messaging services, alongside Telegram.
Moscow is pressuring both platforms to grant authorities access to user data upon request for investigations into fraud and activities the government labels as “terrorist.”
Human rights advocates fear the demand could be used to target critics of the Kremlin, President Vladimir Putin, or the war in Ukraine.
International
Archbishop Wenski criticizes Trump’s deportation policies, calls for stronger push for reform
The Archbishop of Miami, Thomas Wenski, has called for increased pressure on the U.S. Congress to advance comprehensive immigration reform and criticized President Donald Trump’s mass deportation policies, arguing that they “do nothing to help.”
“We need to apply more pressure on Congress so lawmakers can make the necessary changes. It is also important for the Administration to listen to our voice. We do not want to be anyone’s enemy—we are Americans,” Wenski said in an interview with EFE.
The religious leader, who heads one of the dioceses with the largest Latino and Haitian populations in the United States, issued a call to defend the rights of migrants. He also emphasized that the U.S. Conference of Catholic Bishops (USCCB) has maintained a strong and public stance in favor of migrants for decades.
International
Trump relaunches diplomatic push to finalize U.S.-Backed peace plan for Ukraine War
U.S. President Donald Trump announced on Tuesday that his diplomatic team will resume meetings with delegations from Russia and Ukraine in an effort to pressure both sides to accept the peace plan proposed by Washington to end the war in Ukraine.
As part of this new round of talks, U.S. Special Envoy Steve Witkoff will travel to Moscow to meet with Russian President Vladimir Putin. Meanwhile, Army Secretary Dan Driscoll will hold discussions with Ukrainian representatives to narrow differences on the remaining points of the agreement.
Trump also confirmed his intention to meet personally with Ukrainian President Volodymyr Zelensky and with Putin, though he emphasized that such meetings will only take place “when the agreement is fully finalized or in its final stage.”
The president claimed that his administration has made “tremendous progress” toward resolving the conflict and reiterated that the war “never would have started” if he had been in the White House at the onset of the crisis.
The U.S.-backed peace plan consists of 28 points and has been revised following feedback from both sides. According to Trump, only “a few points of disagreement” remain under active discussion.
One of the most controversial aspects of the proposal is the suggestion that Ukraine cede parts of the Donbas region to Russia and limit the size of its armed forces. Kyiv is working closely with Washington to soften these clauses in search of an arrangement that does not compromise its sovereignty or security.
With this diplomatic push, Trump aims to solidify his role as the main mediator in the conflict and steer the war toward a political resolution after years of devastation, humanitarian crisis, and rising global geopolitical tensions.
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