1. Now, as the environmental problem becomes more serious, more and more people are promoting low carbon lifestyle.2. There is no doubt that low carban lifestyle can improve the environment greatly.3. In one hand, we can call on people to use public transportation more often than private vechicles which let off massive carbon dioxide.4. On the other hand, we should take steps to enhance public awareness of saving energy.5. In short, low carbon lifestyle is the best and easiest way to protect the environment and live in harmony with the nature.1. now, as the environmental problem becomes more serious, more and more people are promoting low carbon lifestyle.2. there is no doubt that low carban lifestyle can improve the environment greatly.3. in one hand, we can call on people to use public transportation more often than private vechicles which let off massive carbon dioxide.4. on the other hand, we should take steps to enhance public awareness of saving energy.5. in short, low carbon lifestyle is the best and easiest way to protect the environment and live in harmony with the nature.