Businesses must show exactly what steps they are taking to reduce emissions, rather than relying on PR campaigns, according to one expert.
Spokesman for the Centre of Alternative Technology (CAT) Alex Randell claims that the public will not be convinced that companies are making green changes by simple advertisements.
He adds that one of the best ways for firms keen to reduce emissions is to start by measuring them.
Having a clear idea of the levels being produced, he claims, is the first step in cutting them back.
"[They] need to get a picture of where the emissions are coming from and what point in the supply chain has a big impact and then you can start thinking about reducing them," Mr Randell adds.
Meanwhile, recent research from the Carbon Trust shows that just seven per cent of consumers believe businesses' claims about lowering their impact on climate change.
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