Sustainability

World's greatest rivers dry up

Sanyo releases powerful hybrid bicycle

The World’s first fully sustainable race car

Time running out in fight to protect Arctic

Americans not green enough, Microsoft claims

62 trillion spam e-mails = power used by 1.5 million homes

Beam me down: PG&E moves into space solar power

100 mpg automotive X PRIZE contest underway, 136 vehicles, $10M

New technology extracts energy from moving vehicles

Segway and GM develop two-wheeled city vehicle