1. We should use computer and watch TV as less as possible every day.
2. When we go out, we should take a bus or ride a bicycle, which is good for our health and environmental-friendly.
3. We also should save resource, such as using e-mail instead of paper if possible, protecting forest and planting more trees, taking care of animals.
4. No litter and keep our environment clean. Pay attention to save on water.
请采纳.