When making-a-difference isn't the moral pivot

Climate change has landed us in a collective action dilemma – a situation where cooperation would benefit us all, but conflicting individual interests keep getting in the way. How can we, as individuals, enlarge our sense of self to the point where the broader community – national and global – is more than just an abstraction? And is “we-mode” reasoning always morally preferable to “I-mode” reasoning?