It is not, however, just in direct energy usage that travel and tourism can result in higher consumption levels Increased resource consumption of resources such as water, building products etc (in addition to resource depletion) translates into greater energy demand related to supply, treatment and disposal (CRC for Sustainable Tourism 2000)
This high consumption of energy also translates to high levels of greenhouse gas emissions. Table 2 illustrates greenhouse gas emissions in Australia resulting from travel and tourism accommodation and transportation By 2008 these emissions will result, in an estimated 40 Mt of CO2-e from around 40,000 Australian "direct" travel and tourism businesses including accommodation (4.9 Mt CO2-e in 2008), travel (not including personal car travel (9.3 Mt CO2-e in 2008), restaurants (2.1 Mt CO2-e in 2008) and other activities where data were accessible (1.8 Mt CO2-e in 2008) (CRC for Sustainable Tourism 2000).