Using data from sensors placed beneath downtown Chicago and computer simulations, researchers found that heat is causing the ground to deform, and it could ultimately cause infrastructure to crack. Climate change is sinking cities by warping the ground:
Climate change is warming the world above and below ground, and what's happening below could be causing the world's cities to slowly sink, a new study suggests.Alessandro Rotta Loria
“Chicago clay can contract when heated, like many other fine-grained soils," he said. "As a result of temperature increases underground, many foundations downtown are undergoing unwanted settlement, slowly but continuously. The study, titled "The silent impact of underground climate change on civil architecture," was published Tuesday in the U.K. journal Communications Engineering.Geological layers beneath the Chicago Loop. Using data from sensors placed underground and computer simulations, researchers in a new study found that rising heat is causing the ground to deform, ultimately causing infrastructure to crack.Underground systems, like subways, continuously emit heat into the ground.
He added that some of the damage and cracking seen in Chicago over the years has been "attributed to inappropriate foundation designs and construction methods." But underground climate change "might have exacerbated these issues," Loria said.In cities worldwide, heat from buildings and underground transportation causes the ground to warm at an alarming rate, by as much as 2.5 degrees Celsius a decade.
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