Peru's Shanay-Timpishka River Reaches 86C, Offering Climate Clues Without a Volcano
Updated
Updated · spacedaily.com · Aug 16
Peru's Shanay-Timpishka River Reaches 86C, Offering Climate Clues Without a Volcano
1 articles · Updated · spacedaily.com · Aug 16
Summary
A six-kilometre stretch of Peru’s Shanay-Timpishka river averages 86C and exceeds 90C in places, hot enough to kill small animals within seconds and burn human skin almost immediately.
Researchers say the heat comes not from volcanism—the nearest active volcano is more than 700 kilometres away—but from rainwater sinking 2 to 3 kilometres through faults, warming underground and resurfacing.
A recent ecological study placed 13 temperature loggers along a 2-kilometre transect and found biodiversity fell about 11% for every 1C rise in average temperature near the steaming river.
The hottest zones showed thinner understorey, patchier canopy and more drought-tolerant plants, suggesting long-term heat exposure simplifies forest structure rather than wiping it out entirely.
Scientists see the river as a rare natural experiment for a warming Amazon, though they caution one microclimate cannot represent the basin’s 6.7 million square kilometres and the underground plumbing remains only partly mapped.