Details: Climate scientists have just discovered a phenomenon that threatens to disrupt our world. It may already have contributed to the deaths of hundreds of thousands through drought and famine. Unchecked, it will strike again. The good news is that there is a cure. The bad news is that the cure may be worse than the disease. If they are right, then in tackling the one problem, we may unleash a climate catastrophe on our planet the like of which it hasn't experienced in its 4 billion years. This is a film about stark choices and about the dawning realization that all our predictions about the world's climate may be completely wrong. At its heart is something that scientists are calling 'global dimming'. This film is not a prediction. It is a warning about what could happen if we fail to tackle global warming immediately. There is time to avoid all this - if the political will is there.