On air: Is climate change too big a problem to solve?

With only three days to go, fears are growing that a “deal with teeth” may be out of reach at the climate talks in Copenhagen. Divisions between rich and poor countries seem to be widening… there have been threats of walk outs… increasingly harsh words and accusations from some developing countries that industrialised nations are not serious about carbon reduction. What do you think – is that true? Was a worldwide solution too ambitious to begin with? Is climate change just too big a problem to solve?