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Investment programme to focus on green-collar training, insulation, double glazing and energy-efficient appliances

New fund forms part of £30m green investment programme for North West businesses

Ecotricity boss levels fresh allegations at rival, accusing it of continuing to mislead customers

Global professional body issues report calling for wider corporate reporting of water use

Official watchdogs contacted as Friends of the Earth calls on Good Energy to consider improving communication of ROC retiral policy

Organic diodes could even become twice as efficient as normal bulbs in the future, say researchers

Online carbon database to help firms compare their environmental performance

The row between Good Energy and Ecotricity over "misleading" green tariff claims underlines the urgent need for clearer green energy rules

Good Energy denies accusations from arch rival Ecotricity that it has misled green energy customers

Report says falling silicon costs and expected increase in fossil fuel prices mean grid parity will come sooner than expected