Business Green: Despite a number of high-profile commitments to increase the use of sustainable palm oil, only one per cent of the sustainably certified palm oil available on the market today has been bought, according to figures released today by the WWF. Certified Sustainable Palm Oil (CSPO) has been available since November 2008 and provides assurance that tropical forests have not been cleared during its production. But many retailers are shunning palm oil from sustainably certified plantations …