In the run up to the Copenhagen conference on climate change, here’s Melissa Leach from the STEPS Centre talking about how to pay the climate change bill.

Payments from industrialised countries to developing countries are one method of footing the bill (for example, to help them reduce emissions or invest in clean technologies). But how do these payments work? Will they help the poor, or worsen poverty?

The video is part of the Guardian’s Climate Change and You site, which also features case studies, expert views and polls on climate change.