Sir, In response to the concern expressed over the purpose of the CRC league table (‘Is this new carbon reduction table just a load of hot air?’, 19 November), it is worth pointing out that recording and benchmarking environmental credentials is an essential step for any company in its efforts to tackle carbon emissions.

The first league table is an important initial snapshot derived from a significant and comprehensive undertaking. Subsequent ranking will become more insightful, measuring progress through comparison with previous results.

The key factor for companies to bear in mind is that the CRC league table, and environmental strategies in general, should be about ongoing carbon reduction rather than one-off projects. Despite the initial backlash, we hope that in time the table will be recognised by industry bodies, businesses and consumers as an important vehicle through which to disclose emissions. We would therefore encourage those businesses that did not score highly to view the CRC as an incentive to reduce their emissions and publicise their efforts, rather than an administrative burden.

In any case, there is a strong business case for carbon reduction. To date, we have helped our customers save around 29.5 million tonnes of carbon and around £2.6bn in energy costs.

Hugh Jones, managing director, Carbon Trust Advisory Services