Leaders from developed and developing nations will gather in London for the G20 summit this week to discuss the global economic crisis. The bill for the recovery packages they may agree on will be handed to the next generation. That's why the British Council invited young people from the group the Global Changemakers to share their thoughts on the credit crunch. BBC World Service anchor, Dan Damon, met three of them; American Luke Swiderski, Yunan Jin from China and South African Asanda Dodi.