The World Economic Forum and Accenture [2009] have estimated that logistics accounts for around 5.5% of global greenhouse gas (GHG) emissions and indicated how this is divided between freight transport modes and 'logistics buildings'. Logistics' GHG 'footprint' may appear relatively modest, though, unlike most other sectors, which have been reducing their GHG emissions, transport,and in particular freight transport, has been increasing its output of these gases. On a business-as-usual basis, there trends are forecast to continue.