Air + Water + Carbon + Nitrogen = COMPOST
Another step you can take to take care of the environment is starting your own compost system. Basically composting involves collecting food scraps and allowing them to decompose and eventually turn into compost or humus. This humus can then be used to improve and condition your soil, however it technically is not a fertilizer. By composting you will be turning your waste into something healthy for the environment, instead of throwing it in a landfill. If you feel you are ready to take this task on I highly reccomend it.