1. It is very important to take care of our environment.

2. Protection of the environment is everyone's responsibility.

3. It's our duty to protect our environment.

4. Handle with Care.

5. Environmental impact reports are required under many circumstances by federal and state law.

6. Keep our environment clean and green.

7. But save square inch ground, stay with descendant Geng.

8. Clear waters and green mountains are as good as mountains of gold and silver.

9. The discharge of industrial pollutants should meet both national and local standards.

10. Air and surface water quality in major cities should meet national environmental quality standards.

11. Global warming is a serious issue.

12. If global temperatures increase even a degree or two, it could have catastrophic results.

13. Environmental protection is crucial for the well-being of our planet.

14. We only have one Earth.

15. Love our environment means loving ourselves.

16. Clear sky and blue waters are the treasures of nature.

17. Save energy, save our planet.

18. Cut down trees, save forests.

19. Form good habits to protect the surroundings.

20. Take active measures to protect rare animals.

21. Protect our sea and oceans.

22. Plant more trees, green our planet.

23. Reduce, Reuse, Recycle.

24. Every little bit helps.

25. Go green, stay green.

这些句式涵盖了环保的重要性、个人责任、环境保护的具体行动和措施等多个方面，适合用于不同的环保语境和场合。希望这些句子对你有所帮助。