I could suggest you some points to write essay:
* Pollution is eating our environment, it not only harms the earth but living and non-living components of the eco-system also.
* A survey revealed that pollution rate is increasing very rapidly and there's an alarming need to reduce it .
* Due to pollution, many people become sick, and suffer from really harmful diseases .
* It has lead to global warming
* Pollution is a major threat to our environment and we really need to solve this issue to make our future bright.