What is it with environmentalists and eating meat by the side of the road? Grist:
[. . .] Some argue that salvaging road kill is actually the most ethical and environmentally responsible way to eat meat: It’s a way to maintain carnivorous habits while still opting out of highly questionable conventional means. “The meat industry is pretty extraordinary, particularly things like red meat. It takes something like 27 kilos of CO2 to produce each kilo [of beef],” Cummings says. “I think most people think about [the environmental impact of] jumping in their car, but they might not consider the environmental disaster of beef.”
Just Google “roadkill sustainable meat” to see how often this idea pops up.