artificial super-speed photosynthesising machine (GM biology) CO2 + water +light = glucose + oxygen + water.- no nasty waste products
glucose has many applications, as does oxygen, and water....plus it's good for the environment.
opportunity for industry to make extra money on it's CO2 emissions- by selling glucose and oxygen
oxygen could be bottled for medical or other uses.
glucose- fermented to make fuel? used as sweetner? energy food to the masses? or another idea was to invent GM meat growing- you know without animals needing to be conscious...just growing meat...with glucose being one of the feeding products...more efficient than eating starch too...
sorry that was totally off topic...but i had to tell you my ideas to reverse the effects of excess C02 and world hunger...