The disappointment of Copenhagen showed that words and exhortations are not enough to make a fair, ambitious and binding global deal happen.
Developed countries like the UK need to live up to their promises and obligations, both by transforming their economies at home, and providing support to the developing world. In doing so, they can help to create a safer, fairer and more secure world for all of us; and ensure that millions of people already living in poverty are not further damaged and disadvantaged by the impacts of climate change.