Scientists take aim with tiny algae and their giant promise as the biofuel solution of the future.

Bell-bottoms... Designer jeans... Disco... Big hair... Gas shortages — some icons of the 1970s are etched in the memories of those old enough to remember. A few styles, to the dismay of many, have come back in vogue — oil-related crises among them. Anxiety over the yo-yo of fuel costs returned in 2008, illuminating the dark side of our continued oil addiction. More >