New report argues US government estimates for the social cost of carbon are woefully inadequate

Winners of the agency's Green Power Partnership are using long-term contracts and engaging customers

US smart grid giant reveals plans for smart city push

Governments, food companies, ag giants and the UN began to walk the talk of sustainability during the past 12 months

Joel Makower takes a look back on a year of green business news

Discussing climate change is a challenge. Columbia University and ecoAmerica offer 10 tips for effectively getting your point across

Texan city reveals how cross-industry co-operation can help slash waste levels and save money

The US retail giant reveals how relatively simple energy-efficiency measures have helped cut energy bills and carbon emissions

US food retailer reveals how its ambitious green labeling initiative is already having an impact on its supply chain

US mapping technology specialist Esri reveals how the app revolution could help tackle long-standing environmental challenges