The latest issue of Newsweek leads with an interesting ranking of the world’s 100 greenest companies. The criteria include an assessment of the businesses’ footprint, their policies to manage it, and the transparency of their self reporting.

The company ranked number one is Munich Re, provider of global risk solutions. American founded computer giant IBM comes in at second – it led the way by formalising a corporate environmental policy all the way back in 1971. The National Australia Bank is ranked third, with Bradesco and ANZ Banking Group coming in at fourth and fifth respectively.

The highest ranked British companies are BT(6) and RBS(19). Companies from emerging economies feature prominently in the upper echelons of the list, with India’s Tata and Infosys ranked 7th and 8th respectively, and Brazil’s Bradesco fourth overall. The highest placed Chinese company is the Bank of China (92).