12 June 2025

At the Biogas Solutions Research Center´s summer conference in Linköping, PhD student Konrad Smolarczyk presented a new decision-making tool specifically designed to support more sustainable choices in the heavy-duty, long-haul transport sector.

PhD student Konrad Smolarczyk presents a new decision-making tool to support sustainable transport choices.
PhD student Konrad Smolarczyk presents a new decision-making tool to support sustainable transport choices.

During his presentation, Konrad Smolarczyk emphasized the urgent need to cut emissions from road transport, which currently makes up about 21% of Europe’s greenhouse gas emissions. Although the demand for greener transport is growing, many companies and decision-makers still struggle to choose the most sustainable and practical alternatives.

To help address this, Konrad Smolarczyk developed a multi-criteria assessment model that compares current transport options—such as diesel, electric, and biogas-powered vehicles—across four key dimensions: technical, environmental, economic, and social.

"Many existing assessments only look at numbers like fuel cost or emissions," said Konrad Smolarczyk. "But we also need to include important qualitative factors that can’t always be measured directly."

Konrad Smolarczyk.
Med hjälp av en färgkodad analysmodell vill doktoranden Konrad Smolarczyk hjälpa företag och beslutsfattare att navigera komplexiteten i hållbara transportlösningar.Fotograf: Teiksma Buseva

The model uses a color-coded rating system that makes it easier to understand and compare the strengths and weaknesses of each option. For example, diesel scores well on cost and reliability but poorly on emissions. Alternatives like compressed biogas and liquefied natural gas (LNG) show potential, but results from different studies vary—highlighting the complexity of sustainable decision-making.

Sweden’s national climate goal—reducing domestic transport emissions by 70% from 2010 levels by 2030—set the context for the presentation. Konrad Smolarczyk stressed that ambitious targets like these need practical tools to back them up.

"This tool helps visualize the trade-offs between different solutions," Konrad Smolarczyk explained. "It can guide companies, municipalities, and policy-makers in making more informed, balanced decisions."

Read more about biogas research at LiU

Latest news from LiU

Female PhD-student, brown hair.

Unpackaged food can reduce emissions

How do consumers respond to unpackaged food? And how can the producers and supermarkets design solutions that rely less on single-use packaging? These are some questions explored by PhD student Elena Jiménez Romanillos.

Fawlty Towers - the invisible subtitlers revealed

Swedes read a lot - especially if you include film and TV subtitles. But does the subtitler themselves play any role? In search of an answer, researcher Lars Jämterud has looked at the translation of the classic British comedy series Fawlty Towers.

“Skin in a syringe” a step towards a new way to heal burns

Researchers have created what could be called “skin in a syringe”. The gel containing live cells can be 3D printed into a skin transplant, as shown in a study conducted on mice. This technology may lead to new ways to treat burns and severe wounds.