"Shell [3], the oil company that recently trumpeted its commitment to a low carbon future ... has quietly sold off most of its solar business," reports Terry Macalister. "The move, taken with BP [4]'s decision last week to invest in the world's dirtiest oil production in Canada's tar sands, indicates that Big Oil might be giving up its flirtation with renewables." A Shell spokesperson said the company's solar operations were "not bringing in any profit." Shell still invests in some wind farms and biofuels operations. Pratap Chatterjee questions the environmental impact of "the world's largest bio-diesel facility," which Finland's Neste Oil plans to build in Singapore. "The scheme could exacerbate global warming," he reports for CorpWatch [5]. The "$800 million plant will use palm oil," boosting "demand for new palm oil plantations that displace environmentally sensitive forests." Chatterjee is also skeptical of General Electric [6]'s "clean coal [7]" claims. "'Clean coal' technologies are only marginally more efficient [at reducing emissions] and far more expensive. Others ... are still on the drawing board and may never work."