A new study shows that there could be an unexpected side effect of climate change happening right under your feet. Researchers at Northwestern University used temperature sensors underground across Chicago and found that the city's concrete structures (think parking garages, basements, or train tunnels) are absorbing heat from rising temperatures, and it's causing the city to slowly sink.
Why is the NYC subway platform so hot? One rider built his own sensor network to find out. We explore the geothermal fix the MTA is piloting right now.
