Supermodels did it in this 350.org video - it's one way to get the message across.
Image Credit: http://www.350.org/
And for 24 MORE compelling reasons why you should be concerned about climate change click here.
"Open-sustainability is an approach that applies best practice principles from modern software development and management consulting to drive sustainable development in complex organizations. Using open source software we are creating Sustainability 2.0, or as we call it FISDev, a Framework for Integrated Sustainable Development. FISDev is a tool for a collaborative, open source methodology for Sustainable Development or simply sustainability that anyone can use."