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Last years the degradable materials and products in general, become more popular as the need of the universal market for green products growing continuously. It's usual, every time that new products are available in the markets, to observed a misunderstanding of the different types of these materials (because of various reasons -ignorance, reckless, etc.). A typical example is the confusion of hydro-degradable polymers with the bio-degradable ones. That’s why, many times, some scientists mention the BIO-degradable polymers (starch-based - corn starch / potato / rice, etc.-) as hydro-degradable.
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President Eisenhower is well-remembered for warning the public in his final address to the nation to “guard against the acquisition of unwarranted influence . . . by the military-industrial complex.” But it is little known that Eisenhower, in that same speech further cautioned that “we must also be alert to the equal and opposite danger that public policy could itself become the captive of a scientific-technological elite.”
Anyone who has played in the ocean surf or experienced the current of a river, felt the tug of outgoing or incoming surf, recognizes that there is energy contained in moving bodies of water. Harnessing that energy to create electricity has been in third position, behind solar and wind, as a source of alternative energy. 
It has long been known that greenhouse gases contribute to global warming. In 1827, Jean-Baptiste Fourier suggested that greenhouse gases kept the earth warmer, whilst in 1938 an Engineer, Guy Stewart Callendar predicted that doubling the concentration of carbon dioxide from fossil fuel burning would lead to a global increase of 2 °C, with the poles warming more.
In 1989 the chemistry professors Stanley Pons and Martin Fleishman reported that they had achieved cold fusion in a palladium anode emerged in a solution of sodium deuteroxide in heavy water D2O. Due to a bad exactness of their report, only few other scientists managed to replicate their findings in the first place. The findings were then dismissed as due to misunderstandings and bad scientific practice, and the matter of cold fusion has since been regarded as a taboo area.
There is no question that alternative fuel sources must be found if we are going to reduce our dependence on oil, lower transportation costs, and stop damaging the environment. Algae biodiesel is a fuel alternative that has many people hopeful for these changes as it creates fuel efficiently without displacing food crops, damaging the environment, and it reduces our dependence on oil.
Dealing with waste management has become an issue of major importance. Some things, like landfills, are becoming increasingly full. This creates a situation in which we are forced to find new ways to dispose of waste. This said; let's explore some of the concepts of waste management.
