Sustainability

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

Sea ice coverage down by 278,000 square miles