Mark Jaffe

Mark Jaffe has been a reporter for The Philadelphia Inquirer, Bloomberg News and The Denver Post. He was also previously a Paris correspondent for Businessweek.

Officials will evaluate impacts of Colowyo Mine

May 24, 2015 at 12:08 p.m.

Officials will evaluate impacts of Colowyo Mine

Denver makes top 10 among big cities for energy-efficiency policies

April 24, 2016 at 9:46 a.m.

Denver makes top 10 among big cities for energy-efficiency policies

Private operators are bolstering oil and gas drilling in the Denver-Julesburg Basin

May 20, 2015 at 2:12 p.m.

Private operators are bolstering oil and gas drilling in the Denver-Julesburg Basin

University of Colorado senior Ian Basinger, left, and Simon Mostafa run under a giant painted canvas during a sit-in Tuesday to encourage the CU Board of Regents to divest from fossil fuels.

Fossil fuel divestment at colleges more about the conversation than the money

April 24, 2016 at 10:31 a.m.

Fossil fuel divestment at colleges more about the conversation than the money

US Army Reservists moving earth at Pawnee National Grassland in Weld County, Colorado.

Pawnee National Grassland oil and gas lease sale raises $32 million

April 24, 2016 at 3:55 a.m.

Pawnee National Grassland oil and gas lease sale raises $32 million

Colorado mine approvals failed to look at environmental impacts

May 11, 2015 at 11:07 a.m.

Colorado mine approvals failed to look at environmental impacts

May 11, 2015 at 5:31 a.m.

Colorado mine approvals failed to look at environmental impacts

Shawndra Barry, who has been battling an oil and gas operation in her neighborhood, says the company wanted to use her family's private road for a drilling project east of Fort Collins. "I know she moved me. ... She should run for office," Gov. John Hickenlooper said of meeting with Barry.

Mom power helps compel change around Colorado oil, gas operations

April 24, 2016 at 5:47 a.m.

Mom power helps compel change around Colorado oil, gas operations

Sustainable investment conference takes on fossil-fuel divestment

May 7, 2015 at 11:22 a.m.

Sustainable investment conference takes on fossil-fuel divestment

Dan Haley tapped to head Colorado Oil and Gas Association

April 24, 2016 at 8:57 a.m.

Dan Haley tapped to head Colorado Oil and Gas Association

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Mark Jaffe

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Officials will evaluate impacts of Colowyo Mine

Denver makes top 10 among big cities for energy-efficiency policies

Private operators are bolstering oil and gas drilling in the Denver-Julesburg Basin

Fossil fuel divestment at colleges more about the conversation than the money

Pawnee National Grassland oil and gas lease sale raises $32 million

Colorado mine approvals failed to look at environmental impacts

Colorado mine approvals failed to look at environmental impacts

Mom power helps compel change around Colorado oil, gas operations

Sustainable investment conference takes on fossil-fuel divestment

Dan Haley tapped to head Colorado Oil and Gas Association