Global warming moved another notch up the worry scale last week when the National Academy of Sciences reported that human pollution might not just be causing a gradual rise in the earth's temperature but could also lead to "large, abrupt, and unwelcome" climate change. So it was a particularly good week for DaimlerChrysler to introduce a new fuel-efficient minivan called the Natrium. It runs on a common compound called sodium borohydride. A chemical reaction inside the engine produces hydrogen to power the car's fuel cell, leaving behind not carbon dioxide (the primary culprit in global warming) but borax, a standard ingredient...
Clean Enough to Wash Your Hands
Subscriber content preview.
or
Log-In
To continue reading:
or
Log-In