Current:Home > ScamsShipping Lines Turn to LNG-Powered Vessels, But They’re Worse for the Climate-Angel Dreamer Wealth Society D1 Reviews & Insights
Shipping Lines Turn to LNG-Powered Vessels, But They’re Worse for the Climate
View Date:2024-12-23 20:31:10
Oceangoing ships powered by liquified natural gas are worse for the climate than those powered by conventional fuel oil, a new report suggests. The findings call into further question the climate benefits of natural gas, a fuel the gas industry has promoted as a “bridge” to cleaner, renewable sources of energy but is undermined by emissions of methane, a potent greenhouse gas.
The most commonly used liquefied natural gas (LNG) engine used by cruise ships and cargo vessels today emits as much as 82 percent more greenhouse gas over the short-term compared to conventional marine fuel oil, according to the report, published earlier this week by the International Council on Clean Transportation (ICCT), an environmental think tank.
“If we are serious about meeting the Paris [climate] agreement, temperature goals and decarbonizing the international shipping industry as part of that, then a switch to LNG as a marine fuel is counterproductive,” Bryan Comer, ICCT researcher and a co-author of the study said.
Shipping companies are increasingly turning to liquified natural gas, which is cleaner burning than conventional fuel oil and, with the glut of natural gas from hydraulic fracturing, increasingly inexpensive. When burned, natural gas emits less carbon dioxide, sulfur oxides, and nitrogen oxides than conventional marine fuel. Methane, the primary component of natural gas is, however, more than 30 times more potent as a greenhouse gas than carbon dioxide. If even a small amount of methane leaks into the atmosphere instead of being burned, those emissions can outweigh the fuel’s lower carbon dioxide emissions.
The current study, which was funded by environmental group Stand.earth, found that the LNG engine most widely used by the shipping industry and by cruise ship companies, allowed 3.7 percent of methane to pass unburned through the engine and into the atmosphere. This is due partly to ship engine designs that typically include an open “crankcase” that vents a small amount of unburned gas, and engine tuning that lowers nitrous oxide emissions at the expense of increased methane emissions.
The 3.7 percent of methane emitted from ships is a higher percentage of leakage than across the rest of the natural gas sector combined. A recent study by scientists with the Environmental Defense Fund and more than a dozen research institutions found 2.3 percent of methane leaks into the atmosphere from gas wells, pipelines, storage facilities and other infrastructure.
Recent regulations by the International Maritime Organization, a United Nations agency whose member states cooperate on regulations governing the international shipping industry, have set more stringent requirements for emissions of sulfur oxides and nitrogen oxides, pollutants that pose health concerns for ship passengers, crew members, and port communities. The regulations favor natural gas because the fuel emits lower levels of local pollutants that are harmful to human health than conventional fuel oil.
“If we are going to get serious about tackling health and climate we need to be switching to fuels that emit zero emissions of both pollutants,” Comer said.
IMO regulations are also tightening carbon dioxide emissions from new ships, but the regulations do not apply to methane emissions. The report found zero-emission solutions such as batteries, hydrogen fuel cells, and wind-assisted propulsion could address local pollutants and greenhouse gases, though these alternative technologies remain under development.
LNG made up less than 3 percent of ship fuel consumption from 2013 to 2015, according to the report, but that figure could grow quickly.
“There are more and more LNG engines coming on and there are quite a lot of oil majors who are pushing LNG,” said Aoife O’Leary, director of international climate for the Environmental Defense Fund. “It could grow into a really significant issue so it’s really something we have to get a handle on right now.”
O’Leary said current investments in LNG engines could make a future switch to other alternatives more difficult.
“If you are asking countries and shippers to do an infrastructure investment twice, that obviously is going to be much more difficult and you are going to get a lot more opposition,” she said.
veryGood! (628)
Related
- Detroit Mayor Mike Duggan says next year will be his last in office; mum on his plans afterward
- Harris heads into Trump debate with lead, rising enthusiasm | The Excerpt
- Katy Perry Rewards Orlando Bloom With This Sex Act After He Does the Dishes
- Guns flood the nation's capital. Maryland, D.C. attorneys general point at top sellers.
- 2025 NFL mock draft: QBs Shedeur Sanders, Cam Ward crack top five
- Small plane reported ‘controllability’ issues before crashing in Oregon, killing 3, officials say
- 'I thought we were all going to die': Video catches wild scene as Mustang slams into home
- How to watch Hulu's 'The Secret Lives of Mormon Wives': Cast, premiere, where to stream
- Cleveland Browns’ Hakeem Adeniji Shares Stillbirth of Baby Boy Days Before Due Date
- Donald Trump biopic releases first clip from controversial 'The Apprentice' film
Ranking
- US wholesale inflation picks up slightly in sign that some price pressures remain elevated
- Oilers' Leon Draisaitl becomes highest-paid NHL player with $112 million deal
- Stock market today: Wall Street tumbles on worries about the economy, and Dow drops more than 600
- Naomi Campbell remains iconic – and shades Anna Wintour – at Harlem's Fashion Row event
- Hill House Home’s Once-A-Year Sale Is Here: Get 30% off Everything & up to 75% off Luxury Dresses
- Former tax assessor and collector in Mississippi is charged with embezzlement
- Grand Canyon pipeline repairs completed; overnight lodging set to resume
- Chicago man charged in fatal shooting of 4 sleeping on train near Forest Park: police
Recommendation
-
Democrat Janelle Bynum flips Oregon’s 5th District, will be state’s first Black member of Congress
-
Harris to propose $50K tax break for small business in economic plan
-
Kendall Jenner Ditches Her Signature Style for Bold Haircut in Calvin Klein Campaign
-
Takeaways from AP’s report on JD Vance and the Catholic postliberals in his circle of influence
-
Brianna LaPaglia Addresses Zach Bryan's Deafening Silence After Emotional Abuse Allegations
-
LL COOL J’s First Album in 11 Years Is Here — Get a Signed Copy and Feel the Beat of The Force
-
Mountain lion attacks boy at California picnic; animal later euthanized with firearm
-
Travis Kelce Details Buying Racehorse Sharing Taylor Swift’s Name