EarthGreen fuel technologies pick up speed in 2008 As Obama prepares to green the US, we take a look at the new technologies that may help – from super batteries to oil-cleaning fungi ¿ìè¶ÌÊÓÆµ
EarthHigh-tech sponge could take hydrogen cars further The battle to squeeze the most gas safely into hydrogen vehicles continues, but will "nanosponges" or ants' poison win out? ¿ìè¶ÌÊÓÆµ