Sustainability

Yanko designs a mobile solar powered hospital

Desalination could be made cheaper, says team

Dual-fuel gets a run at U. of Wisconsin

Nissan: Our electric car can power your home

Breeding new crops could slash CO2 levels

Microbes ate Gulf oil – really fast

Hydrogen fuel cell lit up shuttle launch

Badly-produced biofuels can release harmful chemicals

How to grow biofuels without eco-damage

White House touts new era of fuel efficiency