TechnologyChina simplifies method for turning coal to gas The new method could make it more economical to exploit coal seams that are otherwise difficult to reach, but also raises environmental concerns ¿ìè¶ÌÊÓÆµ
EarthBiorefineries: Curing our addiction to oil From transport to plastics, oil is a fundamental building block of our modern world – but it doesn't have to be that way Features