Sightline Author

Clark Williams-Derry

Clark Williams-Derry, deputy director, leads Sightline's research and outreach efforts. Clark brings considerable powers of data geekery to blog topics like climate change and transportation patterns. Previously, Williams-Derry served as senior analyst with the Environmental Working Group. Find his full bio here. Email: clark [at] sightline [dot] org.

Clark's Posts

The Money Behind Northwest Coal Exports

Ambre Energy's financial backer makes money by finding a bigger sucker.

Washington State Traffic Forecast Finally Recognizes Reality

Does Washington's new road forecast spell the end of "build now, pay later"?

Prediction: Cloud Peak’s Coal Export Division Will Start Losing Money in 2015

There's only so long a coal company can make money betting that coal prices will fall.

Living Longer in British Columbia

Longer life spans a sign of better health north of the 49th parallel.

Zoning Part Two: Exclusionary Zoning’s End

Exclusionary zoning is the problem, not the answer.

Zoning: Inclusionary v. Exclusionary

To create inclusive housing, end exclusionary zoning practices.

A Month of Disappointments for Coal Exporters

The bad news for the coal industry keeps rolling in.

Disputing a Study on Coal Exports and Climate

A poorly designed study assumes that breaking the law is "business as usual."

Do Coal Investors Really Care About Exports?

A coal stock sell-off suggests that coal investors ignore export news.

Ambre Energy’s Troubled History: Greatest Hits Edition!

The "thin green line" of the PNW puts Ambre in its place.