In the week Live Earth parties for the planet, Dispatches reveals how attempts to buy our way out of climate crisis may be making things worse. Channel 4 News science correspondent Tom Clarke dissects the many ’solutions’ to global warming being marketed to consumers, from tree-planting and carbon offsetting to green energy tariffs. But what are offsets? And are they really the answer in the fight against global warming?

Channel 4, Monday 16 July 2007 8:00pm