Old rivals, Rangers and Celtic Football Clubs, have both been taking their environmental responsibility seriously by taking measures to reduce their demand on the Scottish water network. By working with leading business utility consultants, Business Cost Consultants, "The Old Firm" have reduced their annual water consumption by more than 78,000 cubic metres - equivalent to more than 200 25-metre swimming pools.
Read MoreThe chief executive of National Grid, the UK energy group, has called for a change in the way energy markets are regulated to encourage suppliers to sell less gas and electricity.
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