The transportation industry is a major user of fossil fuels and a large emitter of greenhouse gases (GHGs). The transportation sector alone is estimated to be responsible for nearly one-third of GHG emissions in the United States.

Research conducted at the École Polytechnique de Lausanne is opening up a new perspective in the treatment of GHGs by proposing a device that captures GHGs at the exhaust outlet and liquefies the carbon dioxide.

This experimental system would allow the recovery of up to 90% of the CO₂ on a truck or bus travelling nearly 300 km per day for an additional weight of about 2 tons. The liquefied CO₂ could in turn be recycled into fuel using energy from renewable sources.

This principle could be extended to all modes of transport emitting CO₂ and in particular diesel trains and merchant ships.

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