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.

An accident at a Weld County fracking site has left one person dead Thursday, Nov. 13, 2014.

Fracking blast kills one Halliburton worker, injures 2 in Weld County

April 26, 2016 at 11:20 a.m.

Fracking blast kills one Halliburton worker, injures 2 in Weld County

Oil tanks are becoming more visible as they encroach on the suburbs, leading to new concerns about leaks of volatile compounds. (Andy Cross, Denver Post file)

Emissions rules yield little benefit along Colorado’s Front Range

April 26, 2016 at 10:15 a.m.

Emissions rules yield little benefit along Colorado's Front Range

Fifty-seven buildings in Denver have joined a voluntary energy project, including 1670 Broadway, above.

Denver seeks to improve energy efficiency in commercial buildings

April 26, 2016 at 3:53 p.m.

Denver seeks to improve energy efficiency in commercial buildings

Solar panels sit on the roof of a newly constructed home at Lennar Homes' Table Rock Ridge in Golden.

Reframing rays: Solar companies seek new ways to sell panels

April 26, 2016 at 6:19 p.m.

Reframing rays: Solar companies seek new ways to sell panels

A host of chemicals emissions are seeping from oil and gas operations

October 21, 2014 at 12:33 p.m.

A host of chemicals emissions are seeping from oil and gas operations

Price of solar arrays keeps dropping — down as much as 19 per cent in 2013

October 20, 2014 at 8:08 a.m.

Price of solar arrays keeps dropping -- down as much as 19 per cent in 2013

Crews last week prepare to move railroad oil tankers into position at a facility run by the Musket Corp. inside OmniTrax's Great Western Industrial Park in Windsor.

Denver-based Broe Group sees long play in OmniTRAX short-line railroad

April 26, 2016 at 4:18 p.m.

Denver-based Broe Group sees long play in OmniTRAX short-line railroad

FILE - This Nov. 6, 2013 file photo shows a warning placard on a tank car carrying crude oil near a loading terminal in Trenton, N.D. Thousands of older rail tank cars that carry crude oil would be phased out within two years under regulations proposed in response to a series of fiery train crashes over the past year. The oil industry's lead trade group released new standards on Thursday, Sept. 25, 2014, for testing and classifying crude shipped by rail after prior shipments were misclassified, including a train that derailed in Canada and killed 47 people. (AP Photo/Matthew Brown, File)

Falling oil prices aren’t dampening Colorado drilling

April 26, 2016 at 9:09 a.m.

Falling oil prices aren't dampening Colorado drilling

H&P Drilling workers work on an oil rig in Weld County in 2013. (RJ Sangosti, Denver Post file)

Oil and gas industry drops lawsuit against Longmont

April 26, 2016 at 3:04 p.m.

Oil and gas industry drops lawsuit against Longmont

Wind, solar forecasting model saves Xcel customers $40 million

October 14, 2014 at 10:52 a.m.

Wind, solar forecasting model saves Xcel customers $40 million

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Mark Jaffe

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Fracking blast kills one Halliburton worker, injures 2 in Weld County

Emissions rules yield little benefit along Colorado’s Front Range

Denver seeks to improve energy efficiency in commercial buildings

Reframing rays: Solar companies seek new ways to sell panels

A host of chemicals emissions are seeping from oil and gas operations

Price of solar arrays keeps dropping — down as much as 19 per cent in 2013

Denver-based Broe Group sees long play in OmniTRAX short-line railroad

Falling oil prices aren’t dampening Colorado drilling

Oil and gas industry drops lawsuit against Longmont

Wind, solar forecasting model saves Xcel customers $40 million