Tony Domanski, Operations manager IT and Infrastructure for the Reverse Garbage Co-Op poses with printed circuit boards from a computer undergoing recycling in Sydney Australia. Modern machines such as computers and personal entertainment devices are being recycled by the Co-Op in Sydney's West, preventing them from ending up in landfill sites. The mother-boards and other usable materials are removed and re-used in re-built machines, and also sold on to artists for artwork. The so-called 'E-Waste' from such machines is currently growing at over three times the rate of general municipal waste in Australia. World Environment Day is marked on June 5 every year, and is the United Nations flagship environmental event, celebrated in more than 100 countries around the world. The event was first established in 1972 by the United Nations General Assembly, with the purpose being to concentrate global attention on the importance of the environment and to encourage political attention and action. According to the United Nations Environment Programme (UNEP), greenhouse gas emissions from human activities are causing the planet to increase in temperature. Carbon dioxide concentrations in the planetary atmosphere are higher now than at any time for the past 600,000 years, and the rate of increase is accelerating. [Photo credit: Ian Waldie/Getty Images]

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