Green groups planning to use US classification of polar bear as endangered species to demand tighter carbon regulations are stymied by new rule

US energy giant reveals plans to expand smart grid project to deploy solar panels on customers' buildings capable of feeding power back into the grid

US trucking industry calls for slower speed limits to help cut fuel costs and curb carbon emissions

Giant $5.5bn project to add over two gigawatts of wind power to hydro capacity

Artificial islands use pollution-eating microbes to suck up toxins from lakes and oceans

Electric car firm outlines plans for four further stores as management mulls IPO

Under pressure from new US government energy efficiency standards, TV manufacturers have joined forces to promote more energy efficient LCD TVs

Canadian firm announces work is to begin on plug-in hybrid for unnamed OEM partner

Source claims supply chain issues hampered retailer's plans to buy organic cotton

Company claims new heat-to-electricity material could bolster energy efficiency of everything from solar farms to refrigerators