This morning many Canadian youth joined international youth and member s of 350.org to stage an aerial photo in Freedom Square. The weather was cold, wet and dreary but more than 200 people lay down on the ground to form the shape of a goddess rising from an island, embracing the number 350. This figure represents the safe upper limit for atmospheric CO2. The most recent science indicates that a concentration of CO2 greater than350 ppm will lead to catastrophic, irrevocable climate change. Prior to the industrial revolution, the concentration of carbon dioxide in the atmosphere was at approximately 275 ppm, but have since been steadily rising. Now at approximately 385 ppm, the concentration of CO2 is greater than at any time in the past 650,000. The science is clear. We need to radically reduce emissions today if we hope to avert the worst impacts of climate change. After shivering on the cold wet cement for about half an hour, smiling at the camera above us, we were enthused to be offered hot chocolate from members of 350.org and eager to discuss our hope that the image would be broadcast around the world to inspire the radical change necessary.