International

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)

International

Ninth Victim Recovered After Deadliest U.S. Avalanche in Decades

Rescue teams in California on Saturday recovered the body of the ninth and final victim of a deadly avalanche in the Sierra Nevada mountains, according to the local sheriff’s office.

The avalanche struck a group of 11 skiers and four guides on Tuesday as they were returning from a three-day backcountry trip near Castle Peak, a 2,777-meter (9,111-foot) mountain and popular tourist destination on the U.S. West Coast.

Six people were rescued alive on Tuesday. Authorities said the incident marks the deadliest avalanche in the United States since 1981.

“All nine individuals who lost their lives in the February 17 Castle Peak avalanche have been safely recovered from the mountain,” the Nevada County Sheriff’s Office said in a statement.

“There are no words that can truly capture the magnitude of this loss, and our hearts grieve alongside the families affected by this catastrophic event,” Sheriff Shannan Moon said.

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Officials had warned on Thursday that search operations would likely continue through the weekend due to severe weather conditions in the area.

Survivors were able to call for help shortly after the avalanche occurred. However, near-zero visibility and the risk of additional snow slides prevented rescue teams from reaching them for several hours.

International

Trump Defies Supreme Court With New 10% Global Tariff

Defiant in the face of a judicial setback, Donald Trump on Friday imposed a new across-the-board 10% tariff after the Supreme Court of the United States ruled that he does not have the authority to levy customs duties under the guise of a national emergency.

The Republican president signed the order in the Oval Office and announced on social media that the measure would take effect “almost immediately.” According to a statement from the White House, the decree will formally enter into force on February 24 for a period of 150 days.

It remains unclear whether the new tariff will apply to countries that have already negotiated trade agreements establishing rates higher than 10%.

Earlier in the day, the conservative-majority court ruled that a 1977 law cited by Trump to abruptly impose tariffs on individual countries — disrupting global trade — “does not authorize the president to impose tariffs.”

Trump said he was “deeply disappointed” by the decision and accused some justices of being influenced by “foreign interests.”

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Although he has made variable tariffs a cornerstone of his foreign policy, Trump acknowledged that it is uncertain whether the government will have to refund revenue already collected. A study by the University of Pennsylvaniaestimated that the amount at stake could reach as much as $175 billion.

“That issue was not addressed by the Court,” Trump told reporters, warning that the legal battle could drag on for “years.”

Justice Brett Kavanaugh, who dissented from the Court’s 6–3 majority opinion, cautioned that the legal process could become a “mess.”

Trump denied any error or haste in using tariffs as a policy tool, arguing instead that the six justices who ruled against him were motivated by “political correctness.” Vice President JD Vance wrote on X that the Court had acted “outside the law.”

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International

U.S. Targets Members of Outgoing Boric Administration With Visa Revocations

The United States government announced on Friday the revocation of visas for three Chilean officials—whose identities were not initially disclosed—citing activities that allegedly “undermined regional security,” an accusation that Chile denies.

In a statement, the U.S. Department of State did not provide specific details about the individuals involved but criticized the outgoing administration of leftist President Gabriel Boric.

“The legacy of the Boric government will be further tarnished by actions that undermine regional security to the ultimate detriment of the Chilean people,” the statement read. It was signed by U.S. Secretary of State Marco Rubio.

Chile’s Minister of Transport, Juan Carlos Muñoz, later confirmed in a video message to the press that he is among those sanctioned.

“I was recently informed that my visa to enter the United States has been revoked by that country, which I deeply regret,” Muñoz said.

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The U.S. statement also noted that Washington hopes to “advance shared priorities, including those that strengthen security in our hemisphere, with the upcoming Kast government.”

The electoral victory of ultraconservative leader José Antonio Kast was welcomed in Washington, which has been building alliances with like-minded governments in the region to reinforce its diplomatic and economic agenda—particularly in response to China’s growing investment presence in Latin America.

“We remain committed to promoting accountability for Chilean individuals who deliberately work to destabilize our hemisphere,” the statement concluded.