Swift-Hook [2010] first showed that renewables are the last to be stored on a power system. This paper rebuts the subsequent erroneous denials by Grant Wilson et al. [2011].

The outcome of COP15, the conference on climate change in Copenhagen, was the Copenhagen Accord which was recognised by the 193 countries that attended. The Accord set no compulsory limits on carbon emissions, and none of the countries that introduced it – USA, China, India [with Brazil and...