The word 'aerosol' in the last paragraph may scare some people, as CFCs which deplete the ozone have been used as aerosol propellants in the past. But please, do not be alarmed, because CFCs are not the only effective propellants. In fact, the folks at Clean+Green use nitrogen as their propellant, which does not deplete the ozone, is not a green house gas, and has no toxicity at all. Nitrogen is already the most abundant element in our atmosphere, and spraying it out of a can has just about exactly zero impact on the environment.
[Update: I assumed the packaging was aluminum. In fact, it is a pretty new and exiting process for making tin free steel aerosol cans, which is lighter (more fuel efficient to ship), made from two solid pieces with no welding (reducing the need for copper and water in manufacturing). Steel is still 100% recyclable with almost no loss or degradation to the product in the recycling process.]
The packaging of this product is almost entirely aluminum, which is not only 100% recyclable with very little loss or degradation of materials, it's vastly more energy efficient when recycled than when produced new (it has been estimated that recycling aluminum takes 5% of the energy of producing it from bauxite). The remaining components are plastic, which is also recyclable (though less awesomely so).
The most impressive thing about this product, however, is not that it works miracles with pet waste and odors, nor that it comes in recyclable packaging or uses nitrogen as its propellant, no. The most amazing thing is that the cleaning agents are completely non-toxic as well. No chlorine, no ammonia, no alcohol, no oxidants, it is not bleach based or enzymatic in nature, it is not even perfumed (aromatic compounds can irritate some people, especially those with severe allergies). Everything that goes into this cleaner is biodegradable, and completely safe for pets (who have a tendency to lick interesting smells on the floor), kids, and the environment.
So in short, if I was prone to using a star system, this product would get as many as I can give. It handled multiple different kinds of pet stains and odors from my dogs and my cats, leaving no residual smell or stains in carpets or upholstery. We even tried it on an old ink stain on a sofa, and to our utter shock and amazement, it reduced the visibility of the stain significantly (they don't make any claims about ink though, so don't hold me or them to that). Marry that performance with a non-toxic, biodegradable product packaged in recyclable materials, and you have one great, green product that I am happy to promote. In shorter: Clean+Green is one of the best cleaning products I have ever used.