5b20a255__2010___The_Board_of_Directors__Potential_impact
[Issue] Climate change, including the emissions from energy used in our offices and during business travel. [How it is managed] Cross-functional, Group-wide Energy Action Teams and a network of company Climate Champions help implement our climate change strategy. Some companies have appointed environmental managers. [Potential impact] 
Negative cost and reputational impact if the Group failed to meet target to reduce per head carbon intensity to 1.2 tonnes by 2020 (from 3.3 tonnes in 2006).
WPP Annual Report 2010 - The Board of Directors