Gilliam wrote:
Can you call CO2 emissions a health effect? I'd rename the graph just Effects of Electricity Generation.
The label is the authors' caption. The x-axis is deaths per terawatt-hour. About CO2, the authors write:
Quote:
The health costs of increased greenhouse-gas emissions are difficult to estimate and are controversial. A WHO study has estimated that the increase in greenhouse gases since 1990 has resulted in around 150,000 excess deaths in 2000. Almost all of these deaths took place in countries that are not members of the Organisation for Economic Cooperation and Development, where increased risk factors for malnutrition, diarrhoea, malaria, floods, and cardiovascular disease are attributed to climate change.
The authors also speculate about the health impacts of CO2 capture and storage. In summary, CO2 health impacts are controversial and uncertain. Therefore the authors do not include CO2 in their calculation of illnesses and deaths from electricity generation.
If you don't like the 2-axis chart with CO2, you might want to make a bar chart using just the x-axis, with or without uncertainty ranges.