Regulators took the first enforcement steps against some of Colorado’s largest oil and gas operators in an investigation into ...

Colorado lags far behind neighboring states when it comes to keeping special permits — those that are critical to stopping ...

Colorado lawmakers in this year’s session took on a wide variety of environmental issues, from the definition of clean energy to the fate of roaming bison. Legislators had to balance $1.2 billion in ...

More than 100 major environmental requirements have been added to state laws since 2009, the Common Sense Institute says, and those have shaved $32 billion from Colorado’s economic output.

In 2023, the National Wildlife Federation won a $500,000 EPA environmental justice grant to plant trees and vegetation along Interstate 70 in Denver’s Globeville neighborhood, an area with well ...

Colorado has some of the largest landfills in the country. Landfills are a source of methane, a potent climate pollutant, and other harmful air pollutants.

The agreement between the EPA and Colorado exemplifies how a presidential administration’s decision to prioritize environmental justice can influence state policy, in this case giving people ...

Colorado lawmakers in 2025 took on a wide variety of environmental and climate change issues, from the definition of clean energy to the fate of roaming bison.