Thursday, October 16, 2025

Scientists make it official and declare Ayoloco glacier dead

A group of scientists has erected a plaque that officially acknowledges the “death” of the Ayoloco glacier, an erstwhile ice mass on the Iztaccíhuatl volcano that disappeared in 2018.

Experts from the National Autonomous University (UNAM) faculty of geophysics, ecologists and others trekked to the site of the now nonexistent glacier on Wednesday to install the metal plaque, which reads:

“To the future generations: the Ayoloco glacier existed here, but it retreated until it disappeared in 2018. In the coming decades, Mexican glaciers will inevitably disappear. This plaque is to leave proof that we knew what was happening [climate change] and what needed to be done. Only you will know if we did it.”

Hugo Delgado Granados, one of the scientists who completed the 7-kilometer hike to the glacier site, told the newspaper Milenio that the main consequence of the disappearance of Ayoloco and other glaciers is a reduction in the quantity of water on Earth. Without large ice masses on mountain peaks, he added, temperatures will increase.

In addition to being ecologically and environmentally important, the Ayoloco glacier has inspired a range of artists. It was extensively photographed, filmed and depicted in artworks, and inspired many Mexican writers.

The message left at the site, said UNAM faculty member Ana Pérez, tells of the “shame we feel” for not addressing climate change.
The message left at the site, said UNAM faculty member Ana Pérez, tells of the “shame we feel” for not addressing climate change.

“For sports people, volcanoes are one thing, for the people who dedicate themselves to literature, they are something else and for geologists, they are another thing,” said Ana Elsa Pérez Martínez, director of literature at UNAM’s culture dissemination department.

Pérez, who also completed the hike, said the plaque acknowledging the disappearance of Ayoloco is not one of honor but rather of dishonor. It’s a sign of the “shame we feel” as a result of the inadequate response to the climate emergency, she said.

Delgado, a geologist, vulcanologist and keen mountain climber, said that Ayoloco was one of Mexico’s most emblematic glaciers, explaining that it was visible from the Valley of México, which includes Mexico City.

“This loss will have a definitive impact on … water, flora and fauna, since it is on these peaks where the liquid originates,” he said.

Source: Milenio (sp), El Universal (sp) 

Have something to say? Paid Subscribers get all access to make & read comments.
collection center for donations

Here’s how you can help victims of flooding in central Mexico

4
The recent heavy rains in central Mexico left countless victims homeless and in need of supplies. Collection centers have been set up to receive donations of food, clothing and medicine.
a monarch butterfly rests on a flower

Northern states welcome first waves of migrating monarchs

2
Pollinator gardens and wildlife watering stations have been established in the Tamaulipas municipality of Gómez Farías and the nearby El Cielo Biosphere Ecological Park, a UNESCO-recognized area prized for its biodiversity and ecotourism.
DHS agents

DHS: Mexican cartels offering bounties of up to US $50,000 for attacks on US federal agents

65
The U.S. Department of Homeland Security released a statement on Tuesday claiming that Mexican criminal networks "have issued explicit instructions to U.S.-based sympathetics, including street gangs in Chicago, to monitor, harass and assassinate federal agents."
BETA Version - Powered by Perplexity