Survey: Are Women Greener than Men?

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There were interesting comments to April's post about men using 20% more energy than women. April also noted that Swedish men were less aware of global warming and less worried about it than women. A commenter wondered "...if there was a comprehensive lifecycle analysis of men vs women. This would give a truer estimation of gender sustainability. I'm sure mens' heavy-footed driving consumes less energy than the growing of cotton for womens' mountains of clothes."

Certainly any lifecycle analysis would have to take into account that men do not live as long as women as they tend to get themselves killed and generally die younger than women, which would skew the numbers in their favour on a full LCA. Who do you think, overall, has the larger ecological footprint?