 Complete the following phrase:  The focus of environmental issues shifted to climate change from 1992 onwards. Due to the transboundary nature of climate change, various calls have been made for a World Environment Organisation WEO sometimes referred to as a Global Environment Organisation to tackle this global problem on a global scale. At present, a single worldwide governing body with the powers to develop and enforce environmental policy does not exist. The idea for the creation of a WEO was discussed thirty years ago but is receiving fresh attention in the light of arguably disappointing outcomes from recent, environmental mega conferencese.g.Rio Summit and 