The Eisenhower-Johnson Memorial Tunnels. (Jesse Paul, The Colorado Sun)

The fire-suppression system in the I-70 tunnels is a critical Colorado insurance policy. We toured it to find out why.

The Colorado Sun spoke to the experts who run the tunnels to learn more about their fire suppression system and how they work. Here’s what we found.

Transportation Primary category in which blog post is published
Health Primary category in which blog post is published

Colorado had to release a health report. So it paid muralists to do it with paint.

A climate change tableau — the first of eight murals on health — is up in Fraser as the state tries to bring some color to sometimes stuffy reports.

Environment Primary category in which blog post is published

People are effectively training bears to get into trouble, and Colorado wildlife officials are sick of it

From a new way of tracking incidents to more-assertive forms of hazing, frustrated CPW officers are trying to change bears’ behavior because humans are reluctant to change theirs

Politics and Government Primary category in which blog post is published

Dark money and big donors fuel the ballot battle over Proposition CC in Colorado

The 2019 election attracts millions in money from nonprofits, whose donors remain hidden despite a new state disclosure law