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.
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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
Trump replaces Homeland Security Secretary Kristi Noem with Senator Markwayne Mullin
U.S. President Donald Trump announced Thursday the departure of Kristi Noem as Secretary of Homeland Security, one of the key architects of the administration’s policy of deporting undocumented immigrants.
Noem, who has been assigned a new role as a “special envoy” to Latin America, will be replaced starting March 31 by Republican Senator Markwayne Mullin, the president said in a message posted on his social media platform Truth Social.
According to media reports, Trump made the decision after Noem’s recent hearings in Congress, during which she faced tough questions regarding the awarding of a major public contract.
International
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Mexico’s president, Claudia Sheinbaum, announced Thursday that the young Mexican woman who proves to have the best ball control skills will receive her personal ticket to the opening match of the 2026 FIFA World Cup in Mexico City.
The left-wing leader had previously said she would not attend the tournament’s opening game on June 11 in the Mexican capital and instead planned to give away the ticket number 00001, reserved for her by FIFA.
During her morning press conference, Sheinbaum explained that women between 16 and 25 years old can participate by submitting a video through an official platform.
“What do they have to do? Keep the ball in the air for one minute,” she said, referring to the soccer juggling challenge that will determine the winner.
Among the judges selecting the winner will be Mexican striker Charlyn Corral, the world’s top female scorer who set a ball-control record in 2005, and professional referee Katia Itzel García.
Sheinbaum also revealed that she plans to watch the opening match during a large public gathering with giant screens in the Zócalo, located in the historic center near the presidential palace.
“Very few people will be able to attend the opening. So I will watch it here with the people, and a young woman will represent me and the people of Mexico,” the president said.
Sheinbaum has previously commented on the high cost of World Cup tickets, as well as the difficulty of obtaining them in a metropolitan area with more than 20 million inhabitants.
In the 2026 tournament, jointly hosted by United States, Mexico, and Canada, Mexico will stage 13 matches in Mexico City, Guadalajara, and Monterrey.
The opening match will take place at the legendary Estadio Azteca, which previously hosted World Cup opening ceremonies in 1970 and 1986, occasions when the presidents in attendance were famously booed by the crowd.
International
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Mexico’s President Claudia Sheinbaum on Wednesday rejected claims that the military operation that resulted in the death of Nemesio Oseguera Cervantes, known as “El Mencho,” leader of the Jalisco New Generation Cartel (CJNG), was carried out under pressure from the United States government.
Sheinbaum explained that the deployment of federal forces was aimed at executing outstanding arrest warrants against Oseguera Cervantes, who was considered one of the most wanted criminals in both Mexico and the United States.
“That was not the objective (to ease pressure from the United States). It is very important, and I want to repeat it. This individual had an arrest warrant, or several,” Sheinbaum said, referring to the operation conducted on February 22.
According to the president, the initial goal was to capture Oseguera Cervantes, but military forces responded after coming under attack during the intervention.
“The operation was to detain him. The problem is that they were attacked — the Secretariat of National Defense — and they responded at that moment,” she said.
The president insisted that the action was not carried out in response to external demands, although she acknowledged intelligence cooperation with the United States.
“It was not done in any way because of pressure from the United States, not at all. Of course, there was intelligence information from the United States that was used specifically,” she concluded.
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