By: Valerie Ann Dismaya
In the age of high-tech monitoring tools, scientists have recently rediscovered an old yet promising method to help predict volcanic eruptions, by observing the leaves of nearby trees.
Researchers say the color and health of tree leaves growing close to volcanoes can offer early signs of an eruption.
This is because rising magma releases carbon dioxide into the surrounding soil, which is then absorbed by the trees, causing their leaves to grow more lush and vibrant.
Who would’ve thought the leaves could tell us something so important?
When we saw them growing denser and greener, we knew something was happening underground.
Using satellite technology and a method called the Normalized Difference Vegetation Index (NDVI), scientists can detect these changes even before any seismic activity is recorded.
The study, led by Germany’s GFZ Research Centre in collaboration with NASA and the Smithsonian Institution, was first applied to Italy’s Mount Etna.
The team found that lush tree growth around the volcano often preceded volcanic activity.
Researchers clarified, however, that this method is not meant to replace traditional monitoring systems like seismographs and gas sensors.
Instead, it can be a helpful tool for remote areas without access to advanced equipment.
In a country like the Philippines, home to several active volcanoes including Mayon, Taal, and Kanlaon, this approach could offer an additional layer of safety.
Nature has its own way of warning us, we just have to learn how to listen.
