THE LANDSCAPES OF Halong Bay in Vietnam, Mulu in Borneo, and Krabi in Thailand hide many mysteries, as with many other places in Southeast Asia where caves are abundant.
In these dark and damp chambers, white spikes of smooth rock grow from the ceiling and the ground, and sometimes intersect to form columns of diverse circumference. These unique rock formations are called speleothems: While most of us admire them for their natural beauty, they are, in fact, the key to unlocking the secrets of climate change and providing important clues about what the Earth’s future climate may hold.
SEA: Speleothem Central
Speleothems are sculpted by a suite of physical and chemical reactions between water and soil containing carbon dioxide and limestone – a type of rock formed by
