The research projects

The term "greenhouse gas" (GHG) includes various gases naturally present in the atmosphere (CO₂, CH₄, N₂O, O₃) or resulting from human activity (CO₂, CH₄, CF₄, SF₆,...) and which have in common to absorb solar radiation re-emitted by the Earth's surface, thus contributing to global warming.

The Sixth Community Environment Action Programme, adopted by Decision No 1600/2002/EC of the European Parliament, established the need to reduce pollution to levels that minimise harmful effects on human health. One of the levers for achieving the air quality objectives set by the EU is to act on emissions linked to transport (air, sea and road).