Climate correspondent Somini Sengupta and photographer Tomás Munita reported from Chile on scientists building a global atlas of underground fungal networks.
July 27, 2022
ALERCE COSTERO NATIONAL PARK, Chile — Toby Kiers took long strides across the spongy forest floor, felt the adrenaline rush in her veins and stopped at the spot she had traveled so far to reach. Into the ground went a hollow metal cylinder. Out came a scoop of soil.
Dr. Kiers stuck her nose into the dirt, inhaled its scent, imagined what secrets it contained to help us live on a hotter planet. “What’s under here?” she asked. “What mysteries are we going to unveil?”
The soil was deposited into a clear plastic bag, then labeled with the coordinates of this exact location on Earth.
Dr. Kiers, 45, an evolutionary biologist based at the Free University of Amsterdam, is on a novel mission. She is probing a vast and poorly understood universe of underground fungi that can be vital, in her view, in the era of climate change.
Some species of fungi can store exceptional levels of carbon underground, keeping it out of the air and preventing it from heating up the Earth’s atmosphere. Others help plants survive brutal droughts or fight off pests. There are those especially good at feeding nutrients to crops, reducing the need for chemical fertilizers.
In short, they are what she called “levers” to address the hazards of a warming climate.
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