When Rothbaum interviews therapists for treating post-traumatic stress disorder, she makes sure they know what they're getting into.

CNN: Treating trauma victims may cause its own trauma

Some of the challenges that greet them upon their return home include recovering from post-traumatic stress disorder and treating wounds received in combat.

CNN: Interviews give veterans a voice, iReporters a cause

That, however, does not alleviate the need for urgent action, says Pearce, insisting he retains a sense of "apocalyptic optimism" harbored by the sense that politicians, in the IPCC reports, U.S. acknowledgment of the scale of the problem and the beginnings of moves towards a post-Kyoto consensus, are finally treating climate change seriously.

CNN: Climate change action: Too little, too late?

Police are not treating the death as suspicious, although post-mortem tests proved inconclusive.

BBC: River Thames body man artist's impression released

Post-mortem tests were unable to ascertain the cause of his death, but at the moment police are not treating it as suspicious.

BBC: Identity of body found in Thames at Wraysbury a mystery

Mr Balls has previously denied treating ex-Haringey Council children's services director Sharon Shoesmith unfairly by removing her from her post in the wake of Baby Peter's death.

BBC: Boost for social workers in wake of Baby P case