Sustainability

MIT creates portable, low-powered desalinator

Bill Gates building nuclear reactor (but it's only a little one)

'Smart roof' could slash energy costs

Going green: it's all about showing off, says prof

Americans lose interest in green issues

Wind farms could raise temperatures

Seoul introduces new type of electric vehicle

Developed world 'outsourcing' carbon emissions

Massive methane release sparks global warming fears

Disposable toilet could clean up slums