1. We should stop factories from producing harmful gases.

2. Save the earth, Our only Home.

3. As we know, water is very important to man.

4. We cant live without water.

5. The amount of water which is suitable to drink is less and less.

6. But some people dont care about it.

7. Its everyones duty to love and protect the environment.

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

9. Environmental protection is crucial for the survival of life on earth.

10. We are using up our natural resources and at the same time polluting our environment with dangerous chemicals.

11. Something must be done to stop the pollution.

12. Protecting the environment is not just about preserving nature, it's also about ensuring a healthy and sustainable future for all.

13. Creating green schools and promoting sustainable development is essential for the well-being of our communities.

14. Water is the source of life, and we must cherish and conserve it for future generations.

15. Every action counts when it comes to protecting our environment. Let's all do our part to make a positive impact.

这些句子涵盖了环保的多个方面，包括减少有害气体排放、节约水资源、保护地球家园、全球变暖的严重性、个人责任、政府机构的角色、绿色学校的创建、自然资源的合理利用、以及环保的普遍重要性。希望这些句子能够帮助你更好地理解和传达环保的理念。