International
Chile’s distant paradise where scientists study climate change

AFP | Alberto Peña
Hidden inside pristine forests in Chile’s deep south, known as the end of the world, lie potential early warning signs of climate change. Puerto Williams on Navarino island, which is separated from the South American mainland by the Beagle Channel, is the world’s southern-most town.
Far from the pollution that blights major urban and industrial centers, it is a paradise that provides unique conditions to study global warming.
“There is nowhere else like it,” Ricardo Rozzi, director of the Cape Horn International Center for global change studies and bio-cultural conservation in Puerto Williams, told AFP.
It is “a place that is especially sensitive to climate change” as average temperatures do not rise above five degrees Celsius. This cold and windy area is the last inhabited southern frontier before reaching the Antarctic.
The ethnobotanical Omora park is home to an immense variety of lichens, mosses and fungi that scientists study by crouching down onto their knees with magnifying glasses.
In the crystal clear Robalo river, minuscule organisms act as sentinels of the changes produced by global warming. In both the park and river, the alarm bells are ringing.
Moss and lichen on the move
At this latitude — 55 degrees south — climate change has an exponential effect on flora that react by seeking out low temperatures, said Rozzi, 61. “The most obvious aspect of climate change is the rising temperatures,” he said. “These lichens cannot survive” if a certain threshold is passed. To escape the higher temperatures, they move.
“In the case of (mosses) we’ve noticed that they have moved. Before they were between 50 and 350 (meters above sea level) and now they are between 100 and 400,” said Rozzi. He says Omora has more diversity per square meter of lichens and mosses than anywhere else in the world. They also help to absorb carbon dioxide.
Another aspect is the elevational diversity gradient, an ecological pattern in which biodiversity changes with elevation.
The 700-meter high Bandera hill’s biodiversity changes every 200 meters and there is a mammoth 1.5 degrees Celsius difference in temperature between top and bottom.
“We can see what changes happen in the high mountains and in the area close to the sea in a very short distance, and we can see how the temperature affects the biodiversity that lives in this river,” Tamara Contador, 38, a biologist at the Cape Horn International Center, told AFP.
She studies the gradients themselves. If the height difference between gradients rises or falls on the mountain, scientists can determine whether there has been a global change in temperature. They say there has been.
Avoiding ‘extermination’
“On a global level, the polar and subpolar ecosystems are the most affected by climate change, so we are in a place where climate change has a much bigger effect on biodiversity than other places,” said Contador.
River organisms also form part of the alert system.
“The organisms that live here are also indicators of water quality and global environmental change,” added Contador.
River organisms move about and have already increased their reproductive cycle, says Rozzi. This confirms there has been a small change to the climate in the area that could have been much greater elsewhere on the planet.
“Some insects that have an annual eggs to larvae to adulthood cycle are now having two cycles because the temperature has risen,” said Rozzi.
By studying these organisms and learning from them “we can avoid crossing the threshold that brings us to the extermination of humanity and other life forms,” he added.
International
Paraguay summons Brazilian ambassador over Itaipú espionage scandal

Paraguay summoned the Brazilian ambassador in Asunción on Tuesday to demand “explanations” and called its own representative in Brasília for consultations following Brazil’s acknowledgment of an espionage operation. The Brazilian government, led by President Luiz Inácio Lula da Silva, attributed the operation to the previous administration.
The surveillance effort aimed to uncover Paraguay’s position in now-suspended negotiations with Brazil regarding the pricing of electricity from the binational Itaipú hydroelectric plant, according to reports in the Brazilian press.
The Brazilian government “categorically denied any involvement in the intelligence operation,” stating in a Foreign Ministry communiqué on Monday that the espionage was carried out under former President Jair Bolsonaro’s administration (2019-2023).
“The operation was authorized by the previous government in June 2022 and was annulled by the interim director of the (state intelligence agency) ABIN on March 27, 2023, as soon as the current administration became aware of it,” Brazil’s government asserted.
Paraguay’s Foreign Minister Rubén Ramírez announced that Brazilian Ambassador José Antonio Marcondes de Carvalho was summoned “to provide detailed explanations” regarding the operation. Additionally, Paraguay recalled its diplomatic representative in Brasília “to report on aspects related to the intelligence activity conducted by Brazil regarding Paraguay’s government affairs.”
International
Elon Musk to step down as government advisor, per Trump insiders

President Donald Trump has informed his inner circle that Elon Musk will be stepping down from his role as a government advisor, according to a report by Politico today.
Citing three individuals close to Trump, Politico states that the president is pleased with Musk’s leadership at the Department of Government Efficiency (DOGE), where he has implemented significant budget cuts. However, both have agreed that it is time for Musk to return to his businesses and support Trump from a different position outside the government.
A senior administration official told Politico that Musk will likely maintain an informal advisory role and continue to be an occasional visitor to the White House. Another source warned that anyone thinking Musk will completely disappear from Trump’s circle is “deluding themselves.”
According to the sources, this transition is expected to coincide with the end of Musk’s tenure as a “special government employee,” a temporary status that exempts him from certain ethics and conflict-of-interest regulations. This 130-day period is set to expire in late May or early June.
International
Milei vows to make Argentina so strong that Falkland Islanders “choose” to join

Argentine President Javier Milei reaffirmed his country’s claim over the Falkland Islands (known as the Islas Malvinas in Argentina) and praised the role of the nation’s armed forces during a ceremony marking the “Veterans and Fallen Soldiers of the Malvinas War Day,” commemorating 43 years since the 1982 conflict with the United Kingdom.
Argentina continues to assert sovereignty over the islands, arguing that Britain unlawfully seized them in 1833.
“If sovereignty over the Malvinas is the issue, we have always made it clear that the most important vote is the one cast with one’s feet. We hope that one day, the Malvinas residents will choose to vote with their feet and join us,” Milei stated.
“That is why we aim to become a global power—so much so that they would prefer to be Argentine, making deterrence or persuasion unnecessary. This is why we have embarked on a path of liberation, working to make Argentina the freest country in the world and once again the nation with the highest GDP per capita on the planet,” he added.
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