How did Pittsburgh shift from coal to natural gas to clean its air in the late 1940s?

 

At a time when cities are routinely affected by wildfire smoke not of their making, let's take a look at how America's onetime steel capital took deliberate actions to clear the severe air pollution largely caused by its leading industry.

 

Pittsburgh passed a smoke control ordinance in 1941 modeled after a St Louis law from 1940, but implementation was delayed until 1947 due to World War II.  The key was switching from coal to natural gas in a city that sits on the largest coal seam in the eastern US.  But, how to get the gas to coal country?

 

During the War from 1942-44, the Big Inch and Little Big Inch oil pipelines were built from Texas to New Jersey via Pittsburgh to fuel northeastern industry mobilized for the war effort.  This meant not having to ship the oil by tankers susceptible to attack in the open ocean.  

 

After the War, the pipelines were converted to handle natural gas. Pittsburgh today has one of the highest proportion of natural gas usage of any city in the country. 

 

Meet Bob Pease, former head of Pittsburgh's Urban Redevelopment Authority and later the Allegheny Conference, as he describes the awful air pollution he encountered when moving to the Steel City in the late 1940s:

Even before Pittsburgh's steel mills were working 24/7 during World War II, civic leadership was concerned about the thick smoke permeating the skies.  Lights were often turned on during daylight hours and office workers brought extra white shirts to work so they could change after lunch because their collars were covered in soot when they returned from their meals.

 

Clearing the air was one of four pillars propelling Pittsburgh to the forefront of American cities seeking to remake themselves following World War II.  The other three were flood control, cleaner water and urban redevelopment.

 

The lights are on midday along downtown Pittsburgh's Liberty Avenue in 1940 below:

 

It wasn't Covid – three women wore masks while shopping in downtown Pittsburgh to help publicize a new smoke control ordinance taking effect in late 1947:

 

An ode to Pittsburgh's smoky skies:

 

If you like the idea of sharing ways to help make our cities better places (such as local pollution controls), join us to help complete the first four 60-minute episodes of the Saving the City series.  

 

. Why Cities Matter

. Living Downtown

. Parks & Recreation

. Family Ties

 

We're going through last-minute b-roll from Chicago, Detroit and New York to augment what we already have and are finalizing the hundreds of historic images that appear in our initial group of stories.

 

We are also working on an updated website to be released soon.

 

And, we are seeking a lead funder so we can start on our next six episodes, covering topics such as transportation, homelessness, urban universities and climate change.

 

 

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After watching Saving the City, you will never look at cities the same way again.

 

 

“Cities have the greatest effect on progress toward clean air and climate change goals…..Nothing less than the coordinated effort of cities is required to reduce pollution and protect the air we share.”

 

Steve Adler, former Austin mayor

Roslyn Place in Pittsburgh’s Shadyside neighborhood is the last wooden street remaining in Pennsylvania.  The road was constructed in 1914 of 26,000 wooden blocks.