Six months is a long time in international politics. Last December the world (194 countries to be precise) and its media descended on Copenhagen for what was billed as the deal-making opportunity of a generation. But despite the frenzy and an astonishingly high-powered guestlist, the talks ended in qualified failure. Qualified, because it could have been worse - the Copenhagen Accord could have been legally binding - and that would have been a disaster.
As the global climate changes, millions of people will be uprooted by sea-level rise, extreme weather events, droughts and water scarcity, says Annegret Kapp. It is vital to start talking about our moral, legal and practical obligations to them.