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BBC's commercial arm instigates new green travel plan which prevents staff from flying within UK and Europe unless a rail journey would take too long

But businesses argue more clarity is still needed

Cash deal motivated by Cisco's aim to strengthen presence in fast-growing videoconferencing market

Huge increase in state funding to help cut building energy bills and accelerate development of zero-carbon properties

Global home appliance giant vows to make all products smart grid compatible by 2015

Reports warn that millions of pounds are still being invested in buildings and projects that lack simple climate adaptation measures

Automakers hope pact will lead to green car launches in China, South Korea and Europe

Streamlined online reporting systems to make it easier for firms to report on carbon emissions

Further consolidation in Chinese solar energy market expected as larger players seek to rapidly expand product lines

Industry bodies publish discussion paper calling for global sectoral cap-and-trade scheme