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

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.

Pacific Rim Coal Prices Continue to Tumble

Coal exporters are seeing red...and red ink...in latest price drops.