T&E investigation uncovers ‘significant amounts’ of methane slip from DF LNG ships
About 80% of LNG burned today in shipping is in engines (low-pressure 4-Stroke) that have worse total GHG emissions than traditional engines running on dirty fuel oil.
European clean transport NGO Transport & Environment (T&E) on Wednesday (13 April) said its investigation into ‘green’ liquid natural gas (LNG) ships has uncovered significant amounts of invisible methane being released into the atmosphere.
On a crisp Monday morning in the port of Rotterdam, the Ecodelta, a dredger boat, gets to work scraping the seabed, clearing the way for the gigantic cargo ships that pass through one of the world’s busiest ports.
The Ecodelta is part of a new trend for supposedly clean gas-powered ships. The names contain words like ‘eco’ and they are often painted green. But their green credentials end there.
Shipping is a huge source of carbon emissions and the switch to clean fuels is slow. Traditional marine (bunker) oil is the dirtiest fuel there is and shipping is responsible for roughly the same amount of global emissions as flying.
The shipping industry alongside oil and gas companies, and many European politicians are pushing for liquified natural gas (LNG) as a ‘clean’ alternative to traditional fuels.
On paper, LNG-powered ships emit less. There is no dark smog. But, invisible to the naked eye, they possess a dirty secret: methane. In fact, roughly 80% of Europe’s LNG used by ships today are worse for the climate than the fuels they replace, due to the release of this potent gas which is over 80 times more warming than carbon dioxide.
A major problem is that across the gas supply chain, uncombusted methane leaks and slips into the atmosphere and it is warming the planet faster.
In a first investigation of its kind, T&E with support from hydrocarbons experts set out for sea to investigate methane slips from ships.
The investigation revealed significant amounts of unburned methane being released into the atmosphere with alarming repercussions for the climate.
These images show heat and gas emissions from the exhaust stack of ship engines. The bright light near the exhaust stack indicates a heat source. As the plume moves away from the heated exhaust stack, we are able to observe uncombusted hydrocarbon emissions.
Finding the invisible
T&E carried out the investigation on a clear November day at the port of Rotterdam – Europe’s largest.
Using a state of the art infrared camera with a special filter to detect hydrocarbon gases, the T&E team set out on a boat to track down known LNG ships in the area.
According to an independent peer review of the images carried out by TCHD Consulting, an optical gas imaging consultancy, the images from the Ecodelta and a giant container ship from the French-based CMA CGM the Louvre are evidence that intense uncombusted hydrocarbon emissions were being released into the atmosphere.
While the bright red flames indicate the heat source, the plumes that trail off into the background are evidence of uncombusted hydrocarbon emissions. Though combustion of hydrocarbon gases may result in differing components, LNG typically contains over 90% methane. Therefore, hydrocarbon emissions seen in this investigation are primarily composed of methane.
According to CMA CGM, its LNG ships enable a significant reduction in CO2 emissions per container,and the company is investing heavily in LNG. Its website claims, “LNG is the best solution currently available to reduce the environmental impact of shipping.”
There is no mention in any of its communication of methane, or how much methane typically slips from its vessels. Either the company is guilty of blatant greenwashing, or, more worryingly, is unaware of the climate damage it is causing.
CMA CGM includes LNG on its website under ‘environmental services’ with statements like, “have a positive impact on public health and the environment with CLEANER ENERGY LNG”. There is no mention anywhere of methane emissions.
CMA CGM includes LNG on its website under ‘environmental services’ with statements like, “have a positive impact on public health and the environment with CLEANER ENERGY LNG”. There is no mention anywhere of methane emissions.
Europe’s dirty secret at sea: How the EU is promoting LNG
Shipowners commissioned more gas-fuelled vessels in 2021 than the four previous years combined, with LNG-powered ships promoted as a clean alternative to traditional fuels.
Last year, the EU proposed carbon intensity targets for marine fuels which would force shipowners to move away from residual fuel oil, the most widely used shipping fuel today.
However, T&E has warned that without sustainability safeguards this will simply lock in LNG as the cheapest alternative. Recent T&E analysis shows that over two-thirds of new ships could be powered with LNG from 2025. This would raise the share of fossil LNG from an estimated 6% today to over one-fifth of all marine fuels in Europe by 2030, locking in fossil fuel use for decades.
Clean alternatives exist
LNG is a fossil fuel. It is not the solution to clean up one of the world’s dirtiest sectors. The immediate threat of climate change means we cannot put more warming gases into the atmosphere.
To avoid this, the EU must adopt stricter greenhouse gas reduction targets for all ships arriving and departing from European ports, so that the sector achieves zero-emissions by 2050 at the latest.
Clean fuels do exist. Green hydrogen-based fuels can massively reduce shipping’s climate impact, but currently they are expensive. If policymakers set mandatory targets and incentives for these fuels now, it would stimulate supply and demand, and make them widely available at much lower costs.
Fossil gas has no role to play in the future of green shipping. Europe must end its dirty secret at sea, now.
What is natural gas?
Natural gas/methane/LNG is a fossil fuel that is extracted from underground. It is mostly made of methane molecules, which create CO2 when fully combusted. Methane is far more potent than carbon dioxide but it stays in the atmosphere for a much shorter time. Methane is therefore 29.8 times more warming than CO2 over 100 years and 82.5 times more warming over 20 years, according to the IPCC’s 6th Assessment Report.
Natural gas is “gaseous” under normal temperature and atmospheric pressure. To make its transportation and storage easier, it is often liquified under freezing temperatures, which creates liquified natural gas (LNG). Natural gas is used by many sectors, including by households for heating in boilers and cooking in kitchens, but also by power plants to produce electricity. Increasingly it is being used for shipping.
Why is methane so bad?
Leaks and slips occur throughout the natural gas supply chain. The use of LNG as a maritime fuel is particularly problematic because slips occur from ship engines. According to data from the International Maritime Organisation (IMO), depending on the engine between 0.2% to over 3% of fossil gas slips from the combustion process and is released directly to the atmosphere.
For this reason, about 80% of LNG that is burned today in shipping is in engines (low-pressure 4-Stroke) that have worse total greenhouse gas emissions than traditional engines running on dirty fuel oil. This is an estimation based on the fuel consumed by LNG-powered ships from the European data reporting system MRV, and fleet characteristics from shipowners’ order books.
Indonesia to expedite removal of sunken Malaysia-flagged tanker “Silver Sincere”
Vessel sank while carrying about 1,000 mt of waste oil on 12 January 2025; the wreck was discovered in March 2025 and was found to have drifted about 13 nautical miles from its original sinking site.
Indonesia’s Coordinating Ministry for Political and Security Affairs on Tuesday (14 July) held a cross-agency coordination meeting to expedite efforts in handling the Malaysian-flagged tanker Silver Sincere that sank off Bintan Regency, Riau Islands.
The vessel sank while carrying about 1,000 metric tonnes (mt) of waste oil on 12 January 2025.
According to authorities, the ship sank within Indonesian waters. After several surveys, the wreck was finally discovered in March 2025 and it was found to have shifted approximately 13 nautical miles from the initial sinking location.
The meeting was aimed to align cross-ministerial and institutional measures to expedite the handling of the Silver Sincere wreck while minimising risks to shipping safety, the marine environment, and national interests.
Deputy for Coordination of State Defense and National Unity Purwito Hadi Wardhono emphasised that the handling of the impact of the Silver Sincere sinking was the first case to be comprehensively coordinated, serving as a model for handling foreign vessels sinking within Indonesian jurisdiction.
Through this cross-sectoral coordination, the government will establish a clear and measurable framework that can serve as a reference for resolving similar cases in the future, while minimising state losses due to environmental pollution, damage to underwater ecosystems and infrastructure, and disruption to shipping lanes.
“The most important thing is to immediately stop and prevent the negative impacts of this ship sinking,” Purwito said.
“Therefore, a coordinating role is crucial, as maritime security governance involves various ministries and institutions with varying authorities, allowing for faster, more integrated, and more effective response,” he said.
He added that the Silver Sincere was a Malaysian-flagged vessel that sank within Indonesian jurisdiction, and therefore, all handling processes must comply with the provisions of Indonesian laws and regulations.
In the meeting, Prof. Eko Ganis Sukoharsono, representing the SAE Energy Consulting Team, presented the results of an analysis based on 14 observation periods using Sentinel-1 Synthetic Aperture Radar (SAR) satellite imagery.
The analysis results showed strong indications of a waste oil spill that has resulted in marine pollution, damage to the seabed due to shifting shipwrecks, disruption of coastal ecosystems and fishing grounds, and potentially threatening the livelihoods of fishing communities around the Riau Islands.
Purwito added these findings further emphasise the importance of accelerating the removal of the shipwrecks to prevent widespread environmental impacts, maintain shipping safety, and avoid the potential for greater state losses.
The meeting brought together representatives of related ministries and institutions including the Ministry of Foreign Affairs, Ministry of Defense, Ministry of Transportation, Ministry of Maritime Affairs and Fisheries, Ministry of Environment, Attorney General’s Office.
China launches methanol shipping supply chain alliance to accelerate green transition
Marine fuel suppliers in the alliance include Sinopec Fuel Oil Sales, China Marine Bunker (PetroChina), SIPG Energy (Shanghai), and Shenzhen Port Energy Development.
China Waterborne Transport Research Institute under the Ministry of Transport and China Transport News recently jointly launched a Methanol Fuel Shipping Supply Chain Innovation Alliance with 20 organisations spanning the shipping, port, energy, equipment, research and industry association sectors.
The alliance was officially announced during the main event of China Maritime Day 2026 on 11 July, where members also released a joint initiative to develop a collaborative methanol-fuelled shipping supply chain.
The alliance aims to implement China’s national strategy for green economic transformation and support the Ministry of Transport’s “One Network, Four Modernisations” initiative by building a safe, efficient, economical and reliable methanol marine fuel supply chain
Under the joint initiative, alliance members pledged to align with China’s national decarbonisation strategy by promoting methanol as a key pathway for the shipping sector’s green transition and optimising the industry’s energy mix.
The members also pledged to strengthen collaboration across the supply chain to improve coordination between bunker fuel production, transportation and end users while advancing technological innovation.
Lastly, the alliance will support the development of policies, planning and technical standards, promote resource sharing and joint research, and accelerate the large-scale adoption of methanol as a marine fuel.
The alliance brings together companies and organisations representing the entire methanol shipping supply chain.
Members include shipping and port members such as China Changjiang National Shipping (Group) Corporation, COSCO Shipping Bulk Co., Ltd., Shandong Port Group, and Wuhan Chuangxin Jianghai Shipping Co., Ltd.
Energy companies in the alliance include Sinopec Chemical Commercial Holding Company Limited and Methanex Corporation.
Marine fuel suppliers including Sinopec Fuel Oil Sales, China Marine Bunker (PetroChina), SIPG Energy (Shanghai) Co Ltd and Shenzhen Port Energy Development Co Ltd are also part of the alliance.
Equipment manufacturers in the alliance are CSSC 711th Research Institute, CSSC Power (Group) Corporation Ltd and Chongqing Hongjiang Machinery Co Ltd.
Research, media and industry organisations participating in the alliance include the China Waterborne Transport Research Institute, China Transport News, and the Methanol Institute.
The Methanol Institute said methanol is moving beyond individual projects towards coordinated action across the entire value chain.
“And China continues to play a leading role in advancing methanol as a marine fuel,” it said in a social media post.
“We’re proud to work alongside our fellow alliance members to help strengthen the methanol supply chain and support the continued growth of methanol as a marine fuel.”
Photo credit: David Yu from Pixabay Published: 17 July, 2026
Dutch wind-assisted propulsion technology firm Econowind on Wednesday (15 July) said it has received a Type Approval Design Certificate (TADC) from classification society DNV for its VentoFoil 3-Series boundary layer suction wing.
The company said the certification confirms compliance with DNV’s ST-0511 standard for Wind-Assisted Propulsion Systems and enables easier integration of VentoFoils on DNV-classed vessels worldwide.
Econowind added that the approval accelerates the deployment of wind propulsion across the shipping industry.
“DNV is one of the world’s leading classification societies. This TADC gives DNV-classed shipowners confidence that VentoFoils meet the highest industry standards,” said Chiel de Leeuw, Chief Commercial Officer at Econowind.
“It simplifies the approval process for both retrofits and newbuilds. VentoFoils are ideal for late-stage design integration and retrofit projects. This is an important milestone for Econowind and for the wider adoption of wind-assisted ship propulsion.”
The 3-Series VentoFoil is Econowind’s best-selling suction wing to date, with over 150 units sold. The system actively harnesses wind power to generate forward thrust, helping to reduce fuel consumption and mitigate FuelEU penalties. The system includes a tilting foundation, allowing the wings to be tilted down during port operations or in adverse weather conditions, making it a flexible solution.
The TADC applies to the 16-meter VentoFoil 3-Series product design and supports easy integration into DNV-classed vessels without repeating the full design assessment process. This enables shipowners, shipyards, and project teams to move more efficiently from concept to installation, reducing project complexity and accelerating deployment.
Hasso Hoffmeister, Senior Principal Engineer at DNV Maritime, said: “It is a great pleasure to award Econowind this new certificate. WAPS have been going from strength to strength over the past few years, from 2022 the number of vessels in operation has increased five times, and we’ve now topped the century mark.
“And with the current advances in technology, materials, and production capacity in the segment, we expect this to accelerate. So, while the wind always changes, the shipping industry is likely to be sailing strong for years to come.”
Econowind expects the DNV Type Approval Design Certificate to accelerate adoption of the VentoFoil, particularly among shipowners seeking proven, independently certified technology that can support fuel savings, emissions reductions, and decarbonization goals.
MS Heinz of HS Schiffahrt is among the first vessels to sail under this TADC.The company said the approval builds on Econowind’s growing installed base and further strengthens confidence in wind-assisted ship propulsion as a practical solution to address energy scarcity and high fuel prices.
In addition to the 3-Series, Econowind offers the 5-Series for the deep-sea market.