Guardian: Biofuels have a limited ability to replace fossil fuels and should not be regarded as a “silver bullet” solution to reducing transport emissions, British scientists warned today. The report, Sustainable biofuels: prospects and challenges, from the Royal Society, found that climate change mitigation, energy security, rising oil prices and economic objectives are encouraging “strong interest” in the development of biofuels for the transport sector. Biofuels – …