Global investment in renewable energy powered to record $257 billion in 2011, according to UN report

SHFT Advisor Gary Hirshberg on why the American food system needs to label genetically modified foods

Underground growers secretly splice fruit-bearing branches onto city trees

Gorgeous photos of a spring sojourn to the Swedish countryside

Forget what you heard about clean tech being dead. A new report finds that investment in green technology is booming

Sustainable technologies feature prominently in this beautiful rural home