EarthNew hydrogen-powered city car takes to the road The small, light vehicle is powered by a fuel cell that combines hydrogen with oxygen from the air to release energy and nothing more toxic than water. ¿ìè¶ÌÊÓÆµ
TechnologyShould nuclear fuels be taken out of national hands? To discourage proliferation, calls are growing to establish a system where nuclear materials are managed under international auspices ¿ìè¶ÌÊÓÆµ