Guardian: Record sums were invested last year in coal power – the most carbon intensive form of energy on the planet – by the World Bank, despite international commitments to slash the carbon emissions blamed for climate change. The World Bank said this week that a total of US$3.4bn (£2.2bn) – or a quarter of all funding for energy projects – was spent in the year to June 2010 helping to build new coal-fired power stations, including the controversial Medupi plant in South Africa. Over the same …