Why are short journeys performed with a cold engine especially damaging to the environment?

Short journeys with a cold engine are mainly harmful for two reasons. Firstly, when the engine is not warmed up, it consumes more fuel as the vehicle is not operating at its optimal efficiency. This increased fuel consumption contributes to higher emissions, which is detrimental to the environment. Secondly, a cold engine experiences more material wear because it operates under conditions that are not ideal, leading to accelerated degradation of components.

In Germany, maintaining a low environmental impact is emphasized in traffic regulations. The law promotes eco-friendly driving practices to reduce emissions and improve air quality. Therefore, recognizing both of these aspects is crucial for understanding why short, cold engine trips are particularly damaging to both vehicles and the environment.