While Republicans say Attorney General Josh Shapiro’s announcement of criminal charges against Energy Transfer is really about politics and not the pipeline, Pennsylvania’s green activists are transparent about what they want.

Kill the Mariner East 2. And do it now.

Which raises the question, what happens if they succeed?

“Now that the attorney general and the grand jury have done their job, there should be no question: It is time for an immediate halt of the Mariner East pipeline project,” green activist Rep. Danielle Friel Otten (D-Upper Uwchlan) said after Shapiro’s press conference. “I am once again calling on Gov. Wolf, the DEP, and the PUC to revoke Energy Transfer’s permits to operate in Pennsylvania.”

State Sen. Katie Muth (D-Chester/Montgomery/Berks) joined Friel Otten and a handful of Pennsylvania progressives to make the same demand in a letter to the Wolf administration.

“We urge you to take immediate action to halt the Mariner East Pipeline project, revoke the company’s permits to operate in Pennsylvania, issue a moratorium on all future permits, and ensure all impacted residents have clean drinking water in their homes through a public water provider,” they wrote.

It’s an extreme stance, particularly given the $2.5 billion, 350-mile project transporting natural gas liquids from western Pennsylvania to the Marcus Hook facility is nearly completed, and thousands of energy sector jobs are at stake.

“Mariner East 2 is critical because the natural gas in southwestern Pennsylvania comes out of the ground with all kinds of other chemicals,” says David N. Taylor, president and CEO of Pennsylvania Manufacturers’ Association. “The natural gas itself is methane, but the methane comes along with ethane, butane, propane, pentane, and natural gasoline, so these are feedstocks that manufacturers can use to make things.”

That is why Taylor says it is so important to get those petrochemical feedstocks from where they are harvested to where they can be processed and then used as a manufacturing input.

“That’s the purpose of Mariner East 2,” says Taylor. “It’s to deliver those inputs from southwestern Pennsylvania to southeastern Pennsylvania.”

Energy Transfer projects the Mariner East and Marcus Hook projects will generate more than $100 million a year for Pennsylvania’s economy. Critics dismiss those numbers, but they concede the energy sector is a key part of the state’s finances.

Speaking about natural gas at an October 4 meeting of the Pennsylvania Senate Environmental Resources & Energy Committee, David Callahan, president of Marcellus Shale Coalition, said Pennsylvania has benefited greatly.

“Thanks to our abundant natural gas resources, along with our embrace of competitive energy markets, Pennsylvania has benefited from tens of billions of dollars in investment and several hundred thousand direct and indirect jobs, including those in the building trades,” said Callahan. “Nearly $14 billion has been invested to date in new natural gas-powered electric generation, not to mention the billions of dollars of investment and thousands of jobs associated with downstream utilization of natural gas and natural gas liquids such as the petrochemical facility in Beaver County that will open up considerable downstream opportunities.”

Callahan went on to add that these natural gas-related investments across the state have brought “billions of dollars to our communities and helped support thousands of more Pennsylvanians with family-sustaining wages.”

If activists succeed in shutting down the pipeline, it would leave manufacturers struggling to get natural gas-related raw materials they need.

“There are many manufacturing processes that require a temperature point that can only be met with natural gas,” says Taylor. “You may have heard about the Shell investment to turn ethane into polyethylene, and polyethylene is at the top of the top of the value chain that — depending on how you process it — can yield every kind of plastic, rubber, paint, glaze, sealant, adhesive, and solvent, all  consumer products people handle and use every day.”

And then there’s the looming national shortage of natural gas. The EU is already suffering through an energy crisis so severe that some nations are considering a return to coal. Lack of access to fuels, natural gas in particular, is driving electricity prices to all-time highs in Europe.

Now come warnings the U.S. may face supply issues as well. Ernie Thrasher, chief executive officer of Xcoal Energy & Resources LLC, told Bloomberg utility companies fear fuel shortages this winter could trigger blackouts.

“These utilities are worried the assets they have can’t get enough fuel,” Thrasher said. “There are people of high authority at large utilities who are deeply concerned.”

Pipeline politics aren’t helping. There has been a spate of pipeline closings due to political pressures since President Joe Biden took office in January. He issued an executive order canceling the Keystone XL pipeline on his first day on the job. In July, Dominion Energy and Duke Energy announced they were canceling the Atlantic Coast pipeline due to “legal uncertainty” in the face of repeated challenges from pipeline opponents. And the plug was pulled on the PennEast pipeline just months after winning a major victory before the Supreme Court for similar reasons.

If convicted, Shapiro’s office says Energy Transfer will be sentenced to fines and restitution.