And Bio-Fuel – Will things ever change? What if trains, planes, and automobiles all were powered simply by the air through which they move? What if their exhaust and byproducts helped the environment? And what if greenhouse gas emissions could be sustainably offset by a charcoal-like substance made from organic materials? All these things may in our future.

An energy-efficient, self-propelling mechanism already exists in nature: the salp, a smallish, barrel-shaped organism that resembles a kind of streamlined jellyfish, gets everything it needs from the ocean waters to feed and propel itself. And scientists believe its waste material may actually help remove carbon dioxide (CO2) from the upper ocean and the atmosphere.

Researcher Laurence P. Madin says, “We had long thought that salps were about the most efficient filter feeders in the ocean. But these results extend their impact down to the smallest available size fraction, showing they consume particles spanning four orders of magnitude in size. This is like eating everything from a mouse to a horse.”

As much as 12% of the world

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