-27042009

Humans are a polluting species in nature. in fact, of all the species in nature, humans are the most polluting. This was not always the case as, until about two hundred years ago, the human race was, on the whole, a good neighbor in the community of species in the biosphere.
However, humans have now begun to behave like 'dogs as careless defectors.' They have strewn their faeces and other rubbish and debris carelessly about the landscape. For the past two hundred years, humanity has been gradually polluting and modifying the natural environment at an increasing rate. Although humans account for only one quarter of the 1 per cent of the earth's entire biomass, they are responsible for 99 per cent of all the earth's pollution and cover 8 per cent of the biosphere's land surface with their built environment.
ECODDESIGN- Ken Yeang