Employees should help to combat climate change by making workplaces more environmentally friendly, the Trades Union Congress (TUC) has said.
British workplaces and work-related transport are responsible for generating around two-thirds of the UK's carbon dioxide emissions, which amounts to more than 66 million tonnes per year, the union claims.
Businesses waste on average around 30 per cent of the energy that they buy, but a 20 per cent reduction in energy wastage would be possible for most companies and equate to a five per cent increase in sales.
The union has published a list of steps that workers can take to make their workplace greener, from switching off lights, computers and machinery at break times and after work, to reducing wastage of paper and water.
TUC general secretary Brendan Barber said: "More and more people are recycling and reducing energy use and waste at home. But for many people work is still a green-free zone, despite being the biggest polluter and power user in the UK."
The guide published by the union also includes examples of times when workers, trade unions and employers have joined together to make big changes across the workplace.