Explain WHAT IS THE COST and WHY THIS IS WORTH IT TO SWITCH from ocean outfalls or cesspits

Watch the YouTubs clips on composting toilets, and find some information on your own then explain how a composting toilet can be practical  on islands and areas with lower population densities.  Convince your reader that composting toilets are NOT pit latrines and can be used in your home or dorm. Explain WHAT IS THE COST and WHY THIS IS WORTH IT TO SWITCH from ocean outfalls or cesspits.

750 words with references

https://www.youtube.com/watch?v=wNMs9oiPuvo
https://www.youtube.com/watch?v=4LrUc0C7vW0
https://www.youtube.com/watch?v=LHECRDlbUPg&feature=related