As Twelfth Night heralds the end of the festive season, Boris Jonhson calls on London households and businesses to ensure their Christmas trees are recycled

Manufacturer beefs up its presence in Southern Europe with two major new joint ventures

LG files lawsuit as US government strips it of right to carry Energy Star label on 20 of its refrigerators

Lanner launches updated software package designed to help firms predict how business strategies will affect the environment

Bio-science firm becomes latest US clean tech outfit to file plans for large-scale IPO

Price of EU carbon allowances bounces back to more than €13 in trading today, after report confirms carbon price fell 21 per cent in 2009

Hospitals and prisons among worst offenders as figures confirm about 5,000 public buildings have lowest-band energy-efficiency rating

Investment in clean tech firms fell from 2008 levels, but is now recovering strongly

North Sea countries plan vast clean energy project

Energy-efficient lights that promise to cut bills by 70 per cent to be sold to local authorities and businesses