While there has been a sizeable amount of research on human origins, with most evidence pointing toward an African genesis around 100, 000 years ago - the so-called "African Eve" - there is more and more interest in the patterns of relationship among existing human populations.

BBC: What is anthropological genetics?

It is not even that there are good reasons to believe that sulphur dioxide dispersed in the stratosphere could drastically disrupt rainfall patterns in ways that could no better be modelled with existing knowledge than next month's cloud cover.

ECONOMIST: The controversy over SuperFreakonomics