The power of maps, here cartograms showing the very different areas where CO2 was released 1950-2000 (above) and where the health consequences of the ensuing climate change are concentrated (below). You could try to show that with the colored-coded maps at lower left, but it wouldn't have the same impact. The bulging North Atlantic nations here, with the bloated Indian Subcontinent and Africa bearing the brunt, tell the story with irresistible force.
Lancet and University College London Institute for Global Health Commission, "Managing the health effects ofclimate change," The Lancet
Vol 373 (May 16, 2009), 1703
