How to Keep Subways and Trains Cool in an Ever Hotter World from Wired Chris Baraniuk

As temperatures increase, trains and subways are becoming unendurable. Potential solutions include everything from cooling tunnels with water to painting rolling stock—but there’s no magic fix.As temperatures increase, trains and subways are becoming unendurable. Potential solutions include everything from cooling tunnels with water to painting rolling stock—but there’s no magic fix.