There is almost always one renewable resource that a given country can exploit with sufficient investment; tides for islands, the sun for equatorial countries, hot rocks for volcanic regions. Any given country can in principle become self-sufficient in terms of renewable energy. The global distribution of uranium is hugely uneven (much more so than fossil fuels) and the use of nuclear power therefore gives countries with uranium deposits disproportionate economic power. Kazakhstan became the world's number one supplier of uranium in 2009, and other major producers such as Russia, Namibia, Niger and Uzbekistan may not be reliable1. It is far from inconceivable that uranium could be subject to the same kind of monopoly that the OPEC (Organisation of Petroleum Exporting Countries) places on oil.  1 'Kazakhstan plans to become global leader in uranium production by 2009', Silk Road Intelligencer, 23rd July 2008,