It turns out more of the electricity that powers the trains is generated by fossil fuels that warm the climate than by renewable sources like wind or solar power.

The heightened security comes after a threat, reported through a CTA database, claimed bombs were placed at the 47th Street, Garfield, and 95th Street stations. The threat indicated that police had ...

Crime deters potential riders. And the CTA's messy finances don't instill confidence. There's plenty for the transit agency ...