Sadhbh O'Neill, who attended the COP-22 climate summit in Marrakesh, provides some thoughts on the limitations of carbon trading; not only does trading completely fail to address the ethics of climate change, but it fails in terms of climate policy too. Among her conclusions: "we need a whole-society, whole-industry mobilisation of effort (the kind of effort that reduces emissions rather than increasing them) and probably rationing of scarce non-renewable energy resources."