Joke Collection Website - Bulletin headlines - Metaphor or duality of environmental protection propaganda?

Metaphor or duality of environmental protection propaganda?

Rainforests are the lungs of the earth.

The forest is a factory that makes oxygen.

Give you a fragrance when you come, and give me a cleanliness when you leave.

Protecting the environment is glorious, but polluting the environment is shameful (double).

Environmental protection is beautiful, and sustainable development is prosperous (dual).