ప్రపంచ పర్యావరణ దినం Date of Issue : 5 -06-1977 World Environment Day ( WED ) is celebrated every year on 5th June to raise global awareness of the need to take positive environmental action. It is run by the United Nations Environment Programme (UNEP). The 2012 year theme for World Environment Day is Green Economy . The UN Environment Programme defines the Green Economy as one that results in improved human well-being and social equity, while significantly reducing environmental risks and ecological scarcities. In its simplest expression, a green economy can be thought of as one which is low carbon, resource efficient and socially inclusive. Practically speaking, a Green Economy is one whose growth in income and employment is driven by public and private investments that reduce carbon emissions and pollution , enhance energy and resource efficiency, and prevent the loss of biodiversity and ecosystem services . These investments need to be catalyzed and