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Chile’s distant paradise where scientists study climate change

Photo: Alberto Peña / AFP

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.

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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.

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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.

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“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.

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  • A glacier over Darwin's mountain range is seen during a journey through the Beagle Channel in the Magallanes region, the southernmost of Chile, on September 23, 2022. - There is a place at the end of the world, in the southernmost point of Chile, where pristine forests hide tiny systems in their depths that already give early warning of the global climate change that the planet is suffering. Beyond the place where the American continent ends, on Navarino Island, crossing the Beagle Channel, Puerto Williams stands as the southernmost city in the world, a place far from pollution and human mistreatment, with unique conditions for the study of climate change. (Photo by Alberto PEÑA / AFP)

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International

Portuguese Authorities Seize 2.6 Tons of Cocaine Worth More Than $550 Million in Drug Bust

Italian financial police reported Monday that Portuguese authorities intercepted a speedboat carrying more than 2.6 tons of cocaine, with an estimated street value exceeding $550 million.

Four people — two Spanish nationals, one Albanian citizen, and a man from Gibraltar — were arrested in connection with the operation, according to Italian authorities.

The vessel was intercepted off the coast of Lisbon by Portugal’s maritime police following an investigation led by Italian authorities.

Italian financial police estimated that the seized shipment had a street value of approximately 500 million euros ($570 million), making it one of the largest drug seizures reported in the region in recent years.

Portuguese authorities said the interception took place on Thursday, about 90 kilometers (50 nautical miles) southwest of Cape Espichel, during an operation targeting international drug trafficking routes.

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International

U.S. and Iran Maintain Ceasefire as Trump Expresses Optimism Over New Talks

U.S. President Donald Trump said Monday that there are “good chances” of reaching an agreement with Iran, as both sides maintained a ceasefire for the third consecutive day following weeks of escalating hostilities.

Trump expressed optimism about the possibility of resuming diplomatic negotiations aimed at ending the conflict, which began in late February and has raised international concerns over its impact on global markets and energy supplies.

The fighting has remained suspended since Saturday, after the United States resumed airstrikes against Iran amid a dispute over control of the Strait of Hormuz, a key route for global oil shipments. The renewed military action had previously caused the collapse of an earlier ceasefire agreement.

Asked about the prospects for negotiations aboard Air Force One, Trump said: “I have a lot of patience… We’ll see what happens. I think there are good chances that something could happen.”

The U.S. president also highlighted Washington’s military capabilities, saying: “We have a lot of ammunition,” while adding that he would like to have more resources due to U.S. support for Ukraine.

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U.S. Ambassador to the United Nations Mike Waltz said Trump was allowing diplomatic efforts more time, explaining that the president was “giving some space to the talks” while maintaining that Washington remains prepared to take action if necessary.

Meanwhile, tensions continue in other areas of the Middle East. Saudi Arabia reported that it intercepted drones launched from Iraq by groups allied with Tehran and urged the Iraqi government to take measures to prevent further attacks.

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International

Police Investigate After Remains of Five Newborns Found in French Apartment

French authorities have opened a murder investigation after the discovery of human remains believed to belong to five newborn babies inside an apartment in the historic center of a city, the local prosecutor’s office reported Monday night.

According to prosecutors, a 32-year-old woman had given birth at home on Sunday to a healthy baby before being taken to a hospital for medical care.

The discovery was made after the woman’s 32-year-old partner began searching the residence after reportedly learning, once again and at a late stage, that she had been pregnant.

During the search, the man found what appeared to be human remains and informed the hospital, which then alerted prosecutors.

A forensic doctor determined that the remains likely belonged to five newborn infants. Authorities have not yet established the circumstances or motive behind the case.

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Investigators have not been able to interview the mother, who remains hospitalized following the delivery.

Prosecutors also confirmed that the couple has two other children, aged eight and nine years old. The investigation remains ongoing as authorities work to clarify the events surrounding the discovery.

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