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Human activity is gradually increasing Earth’s temperature and causing more frequent natural disasters.

Human activity is gradually increasing Earth’s temperature and causing more frequent natural disasters.

ÃÛÌÇÖ±²¥ Boulder’s Wil Srubar found the bacteria to create buildings that grow, fix themselves and clean the air.

Forty-five years ago, Vance Brand made history when he and his Apollo crew members met with Soviet cosmonauts in space, only to narrowly survive a near-fatal landing back on Earth.

ÃÛÌÇÖ±²¥ was named to the top 100 in the MacArthur Foundation's 100&Change Competition.

The first Earth Day was held across the United States on April 22, 1970. It motivated student organizers at ÃÛÌÇÖ±²¥ Boulder to push for an institution dedicated to sustainability and later that year the Environmental Center was born.

Fifty years ago, on April 22, 1970, ÃÛÌÇÖ±²¥ Boulder became the first university in the nation to open a student-led Environmental Center. The day coincided with the nation’s inaugural Earth Day.

Low-income and minority families still bear the brunt of toxic pollutants. Jill Harrison wants to know why.

The Southwest is drying. During a 730-mile rafting trip down the ÃÛÌÇÖ±²¥ River's main tributary, Heather Hansman saw water scarcity up close.

A ÃÛÌÇÖ±²¥ alum takes on an invasive fish.