Sustainability

Philly Eagles go for clean energy sack

Methane-powered laptops on the way

Many consumers skeptical over EVs

Environmentally friendly car full of crap, runs off it

LA Auto Show sees Honda plug-in platform

Planes should look more like birds, says team

Recession triggers cut in carbon emissions

'People-powered poo pump' could clean up slum life

Business leaders demand action on climate change

Physicist turns trees into street lights