The following table shows how our composite baselines for the Company, our UK operations and our US operations are compiled. In each case, we only used data from years where the data has been both verified and published. Data from previous years which were not verified or published is not used, although using this data would increase the baseline, which in turn would result in a greater percentage reduction. The table references where the verified data can be found.
Data is shown as either Scope 1 or Scope 2 in line with the World Resources Institute Greenhouse Gas Protocol Initiative
Where our business changes, such as the sale of National Grid Wireless and Advantica in 2007, we adjust the baseline accordingly to ensure a fair comparison with our current emissions can be made.
KeySpan will be included in our baseline for our 2008/09 reporting.
Baseline update: 2007/08