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.

20260430_renta_mh_ultimodia_728x90

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.

20260430_renta_mh_ultimodia_728x90

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.

20260430_renta_mh_ultimodia_728x90

“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.

20260430_renta_mh_ultimodia_728x90

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

Iranian leader warns foreign powers have “no place” in Strait of Hormuz

Iran’s Supreme Leader, Mojtaba Khamenei, said Thursday that the Persian Gulf is entering a new era marked by a “bright” future without the presence of the United States in the region.

His remarks came during the commemoration of Persian Gulf Day, amid ongoing regional tensions following recent military confrontations involving Iran, the United States, and Israel.

“Today, two months after the largest military buildup and aggression by the bullies of the world in the region and the humiliating defeat of the United States, a new chapter is being written for the Persian Gulf and the Strait of Hormuz,” Khamenei stated.

The Iranian leader insisted that the future of the region would be free from American influence and focused instead on the internal development and prosperity of Gulf nations.

“By the power and strength of God, the bright future of the Persian Gulf region will be a future without the United States and dedicated to the progress, welfare, and prosperity of its nations,” he said.

20260430_renta_mh_ultimodia_728x90

Khamenei also questioned the effectiveness of U.S. military bases in the region, arguing that they do not provide security even for Washington’s allies.

“Foreigners who come from thousands of miles away and commit evil and malicious acts have no place there except at the bottom of its waters,” he declared.

In addition, the Iranian leader defended new measures being prepared by Tehran to regulate maritime traffic through the Strait of Hormuz, including fees for vessels passing through the strategic waterway. According to Khamenei, the policies would generate economic benefits and greater stability for the region.

Regional tensions remain high following the conflict that erupted on February 28 between the United States and Israel against Iran, leading to strategic blockades in the Strait of Hormuz, a route through which nearly 20% of the world’s oil supply previously passed. The situation has disrupted maritime trade and contributed to rising global oil prices.

20260430_renta_mh_ultimodia_728x90

Central America

U.S. and Regional Allies Back Panama Amid Dispute With China

The United States, Bolivia, Costa Rica, Guyana, Paraguay and Trinidad and Tobago issued a joint statement in support of Panama’s sovereignty, arguing that China’s recent actions represent an attempt to politicize maritime trade and undermine the sovereignty of nations in the hemisphere.

“We are closely monitoring China’s selective economic pressure and recent actions affecting vessels flying the Panamanian flag,” the statement released Tuesday said. “Panama is a pillar of our maritime trading system and, as such, must remain free from undue external pressure.”

The statement comes amid growing tensions surrounding the Panama Canal and the operation of key ports linked to global trade.

At the end of January, Panama’s Supreme Court invalidated the legal framework supporting the 1997 concession that granted Panama Ports Company, a subsidiary of CK Hutchison, the right to operate the Balboa and Cristóbal terminals located on the Pacific and Atlantic entrances of the Panama Canal.

The ruling followed mounting pressure from the United States to curb Chinese influence around the strategic waterway, through which roughly 5% of global maritime trade passes.

20260430_renta_mh_ultimodia_728x90

CK Hutchison, which managed the ports for nearly three decades, rejected the court’s decision and accused Panamanian authorities of illegally confiscating its assets. The company has launched international arbitration proceedings against Panama, seeking more than $2 billion in damages.

Following the court ruling, reports emerged of increased detentions and inspections of Panamanian-flagged vessels in China, actions widely viewed as retaliatory measures.

On Wednesday, China’s Foreign Ministry dismissed the joint statement as “completely unfounded and misleading,” accusing the United States of politicizing port operations and warning that Beijing would take steps to protect its interests in Panama.

International

King Charles III Says U.S.-UK Alliance Is “Irreplaceable and Unbreakable”

King Charles III of the United Kingdom reaffirmed the strength of the British-American relationship on Tuesday during a speech before the United States Congress, describing the alliance between the two nations as “irreplaceable and unbreakable.”

The address, delivered at the Capitol, marked the first speech by a British monarch before Congress since Queen Elizabeth II in 1991 and comes at a time of political tensions between Donald Trump’s administration and the Labour government of Prime Minister Keir Starmer.

“As President Trump himself observed during his state visit to Britain last autumn, the bond of kinship and identity between the United States and the United Kingdom is invaluable and eternal. It is irreplaceable and unbreakable,” the king said.

While reflecting on the upcoming 250th anniversary of U.S. independence, which will be commemorated this year, Charles III stated that the partnership between the two countries “was born out of disagreement, but is no less strong because of it.”

The monarch emphasized the democratic values shared by both nations and noted that major global changes have occurred whenever the two allies found common ground.

20260430_renta_mh_ultimodia_728x90

“When we have found that way to agree, great changes have taken place not only for the benefit of our peoples, but for all peoples,” he said.

King Charles also quoted British Prime Minister Keir Starmer, who recently described the relationship as “an indispensable alliance.”

Concluding his speech, the monarch described the shared history of the United States and the United Kingdom as “a story of reconciliation, renewal, and an extraordinary partnership.”

He added that Washington and London have forged “one of the most consequential alliances in human history.”

“I pray with all my heart that our alliance continues to defend our shared values, together with our partners in Europe, the Commonwealth, and around the world, and that we ignore calls urging us to become increasingly isolationist,” Charles III stated.