Sustainability. This word has probably never been used as much before as it has been during this decade. We’ve had several conferences, debates, speeches and awareness programs to discuss the one pertinent issue of creating sustainable sources of food, water and various kinds of energy. Why is this so important? Put simply, the Earth has never been this ravaged before. An increasing number of trees are felled, animals reared, forests wiped off and streams and rivers that are either too polluted, or just plain dry. In the balance of nature, anything wrong with one part of it, automatically results in an imbalance elsewhere - pretty soon, there’s a threat to the whole ecological system. Our human population has been growing, so have our needs. Sometimes this reflects in the forests that must be cut down for excess land, leaving forest animals with no natural habitat, causing them to roam astray, creating an increasing number of endangered animals and a steady depletion in g...