Hydrogen economy looks out of reach
Converting every vehicle in the United States to hydrogen power would demand so much electricity that the country would need enough wind turbines to cover half of California or 1,000 extra nuclear power stations.
October 6, 2004
Look forward to a darker world, ‘Global dimming’ may stop the Earth overheating.
It’s official: the world is getting darker. Scientists are now agreed that as cloud cover and particles in the atmosphere increase, the amount of radiation reaching us from the Sun is falling.
May 18, 2004