Carbon capture can make money for oil giants, and scientists say we need it. Is the industry willing to invest enough? From a report: Elk and pronghorn antelope migrate each fall through southern Wyoming, where the sparsely vegetated landscape slowly gives way to the foothills of the Rocky Mountains. Interrupting this serene vista is a dense web of steel pipes, tanks, and pumps owned by Exxon. The industrial complex provides a clue about what lies beneath: an ancient sea of coral and marine life, petrified by time and pressure into a thick layer of rock. Known as the Madison formation, this geologic structure is miles wide and reaches more than 10 Empire State Buildings below the ground. It contains natural gas, helium, and carbon dioxide. Two of these gases are consistently valuable to Exxon’s business. The third is not — and that’s a problem for everyone on the planet. For three decades, the American oil titan has been pumping up these gases, separating them, selling some, and dumping the remainder into the atmosphere. Exxon produces more CO2 than it can sell or use, so the company lets a lot float away — as much as 300,000 cars’ worth of emissions a year.
Exxon was set to embark on a project to do the reverse: pump the unwanted gas back down where it came from. The plan was technically and strategically straightforward. By capturing CO2, transporting it to an injection site, and burying it, Exxon would have locked away enough of the planet-warming gas to almost eliminate the climate harm caused by the facility. The captured carbon may not have made much money for Exxon on its own, but a recent change to the U.S. tax code would help overcome that hurdle with lucrative credits for safe storage. The company put the total cost of construction at about $260 million, 1% of its capital budget for 2020. LaBarge, as the gas operation is known, would have become one of the world’s foremost examples of carbon capture and sequestration (CCS), a technology most climate-modeling experts view as essential to slowing down global warming and, eventually, reversing it. The project would also help Exxon clean up its image as one of the foremost corporate climate polluters. Construction was set to begin over the summer. But in April, Exxon told Wyoming officials that the project would be delayed indefinitely, because of fallout from Covid-19. The company’s share price at one point during the pandemic dropped to an 18-year low, as oil prices cratered, throwing many plans across the industry for this year and beyond into turmoil.
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Source:: Slashdot