The document discusses sustainable development within the United Nations. It analyzes statements made at the 57th UN General Assembly to understand perceptions of sustainable development. It finds that views of sustainable development diverge across social, economic, and environmental issues but converge in associating it with global risks and forming partnerships. Sustainable development creates common language and political discourse. The conclusion is that within the UN, sustainable development represents a constructive ambiguity that facilitates cooperation across differing ideologies and reflects reflexive modernity in questioning modern political structures.