Yep, the Copenhagen consensus goes at it a different way, arguing that we have to make humanity oriented decisions on priorities.
This Breakthrough Institute has some reasonable things to say.
Read their manifesto.
They are not so misanthropic as the usual green socialist nut cases, so their proposed positions on environmental issues are more sensible.
Some info on the Copenhagen Consensus project, now allied with the mag Economist. Bjorn Lomborg is the founder, an economist who came to his senses studying the extraordinary work of Julian Simon.