New Scientist: Human society is already, in small but significant ways, being shaped by global warming. So said a climatologist at the climate change congress in Copenhagen, Denmark, on Thursday. Jean Palutikof of the University of East Anglia, UK, pointed to numerous studies warning that climate change is going to deeply transform our society, by increasing the death rate, for example, or changing the way we grow food. If you look in the right places, says Palutikof, it is already possible to see …