David Faulkner gained his PhD in Electrical Engineering from the University of Essex in 1983 in Optical Fibre Communications Systems. His research career was in access networks with specialisation in passive optical networks for BritishTelecom. He filed 18 patents as inventor. Between 1995 and 1999 he was visiting lecturer at Essex University. From 2000-2008 he was Rapporteur for ITU-T/SG15/Q2 on “Fibre Systems for Access Networks”. He has chaired the conference on Networks and Optical Communications since its inception in 1995. He chaired the ITU-T Focus Group on ICT and Climate Change in 2008-2009 and is now Co-chairman of the Joint Coordination Activity on ICT and CC. He keeps up to date with climate change issues; especially ICT and aviation and has adopted a more environmentally friendly lifestyle. In November 2009 he co-founded Climate Associates Limited to encourage and support environmental initiatives among clients and colleagues.