Greenhouse gas emissions of London hospitals, primary care trusts, etc. shown as actual volumes of carbon dioxide gas (at 15 °C and standard pressure). The area of the volumes corresponds to the floor area of the buildings, which means that tall/thin volumes are associated with buildings with high emissions per unit area, and short/wide volumes indicate low emissions per unit area. As one might expect, acute hospitals are the biggest emitters.
The visualisation supports initiatives to reduce carbon emissions in the National Health Service by providing a physical sense of scale. Despite the limitations of Google Earth Pro (which are very apparent in the video) by relating quantities of carbon dioxide to familiar landscapes and buildings the visualisation provides multi-sensory insight into otherwise un-engaging data.
For more details see www.carbonvisuals.com