Wholistic solutions solve more than one problem.

Big picture solutions are the ONLY practical ones in an age of perfect storms (many problems all at once).
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"We are not passengers on spaceship Earth, we are the crew."
~Marshall McLuhan

nasa.gov/centers/ames/greenspace

earthobservatory.nasa.gov/Newsroom/view.php?id=38430&src=eoa-nnews

NASA Envisions "Clean Energy" From Algae Grown in Waste Water

...process to produce "clean energy" biofuels, that cleans waste water, removes carbon dioxide from the air, retains important nutrients, and does not compete with agriculture for land or freshwater..."Sustainable Energy for Spaceship Earth."...most of the oil we are now getting out of the ground comes from algae that lived millions of years ago...

...soy beans produce about 50 gallons of oil per acre per year; canola produces about 160 gallons per acre per year, and palms about 600 gallons per acre per year. But some types of algae can produce at least 2,000 gallons of oil per acre per year...biofuels will be made and sewage will be processed. For the first time, harmful sewage will no longer be dumped into the ocean. The algae and nutrients will be contained and collected in a bag. Not only will oil be produced, but nutrients will no longer be lost to the sea...