The nonprofit announced the winners of its annual Keeling Curve Prize on July 1 in Aspen. It also showcased past laureates, who credited their success to receiving the award.

The city of Aspen broke ground on the state of Colorado’s first car-to-pedestrian transition in 1976. A series of public events and installations honoring the landmark’s 50th anniversary this summer culminated in an art parade last month.

The Battlement Trail Fire is 99% contained. Fire officials said in a statement Monday evening that crews will remain on scene for the next few days to monitor hot spots and ensure the safety of nearby trails and recreation areas before declaring full containment.

A resident-led cooperative went under contract this week to buy their mobile home park for $23 million from Maryland-based Horizon Land Management. Cavern Springs residents hope to raise an additional $1.9 million before closing on the property in October to keep loan repayments down.

Firefighters will now be able to use N95 masks on the fireline – building on a more limited, voluntary rollout of masking that started last fall. There will also be expanded access to showers, time for routine gear cleaning and so-called “clean air recovery periods” that can limit other risks.

They include analyzing aggregated cell phone location data, public social media and visitor surveys.

Just over 1 million people in the U.S. are living with Parkinson’s disease. There’s no cure, but research shows that certain types of exercise, like boxing, can help manage symptoms, including problems with balance and coordination.

Local leaders in Grand Lake, Colorado, hope the workshop expands opportunities for locals and helps attract tourists year round.

Tyler died "unexpectedly" in a hospital in Portugal where she was being treated for an illness, her family said Thursday in a statement on her website.

Trump is the first president to have an airport named after him while in office. The Trump Organization says he won't get royalties from the renaming, but legal experts see potential loopholes.

Aviation is literally soaring in the U.S., with record passenger numbers. But with a generation of mechanics set to leave the workforce, the industry needs new graduates to fill the gap.

The new round of bombing in the Middle East has underscored the precarity of relying on fossil fuels. The war is speeding up the global transition to EVs, solar, and batteries, experts say.