One example:
Petrol and diesel engines are becoming more efficient, using less fuel to perform the same work. Thus the CO2 emissions for each car trip have become lower. At the same time, people in European countries are driving more often, and more and more goods are being transported by road. In addition, large and heavy cars have become more popular and larger cars emit more greenhouse gases. The result is that emissions from transportation in general are increasing. If the growth in emissions is to stop, we either have to use technology that cuts emissions more quickly and more efficiently, such as fuel-cell engines run on hydrogen, or we simply must drive less.
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2. Driving more and more: Although petrol and diesel engines are becoming more efficient, emissions from vehicles are increasing. This is because people are driving more often and more goods are being transported by road. Photo: Corel Gallery.
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