Is nuclear power necessary for solving climate change?

Is nuclear power necessary for solving climate change?
The Guardian
The relative costs and benefits of nuclear energy have been the subject of heated debate in recent years thanks to a combination of factors, including the need to cut carbon emissions and the 2011 accident at Fukushima, Japan. Critics argue that ...http://www.guardian.co.uk/environment/2012/dec/21/nuclear-power-necessary-climate-change