Hundreds of semitrailer trucks zipping along North American highways are now powered in part by hydrogen. These 18-wheelers make hydrogen as they go using a system called Hydrogen Fuel Injection which eliminates the need for high-pressure, cryogenic storage tanks or hydrogen filling stations.
Global warming may ramp up average temperatures by 20 degrees Fahrenheit in less than 50 years, according to the first climate prediction experiment relying on the distributed computer power of 90,000 personal computers.
A recent study on buckyballs and fish adds fuel to critics' arguments that nanomaterials might be an environmental hazard. Some seek special regulations, but others aren't concerned.