For the GHGs indicated by CO
2
equivalent (CO
e), the economic
activities generated by waterfront tourism had a lower carbon
footprint per unit of gross output (80 t/million Yuan) than those
for marine transportation (110 t/million Yuan), which was similar
to the case of energy use. As to SO
2
2
, the emission intensity of the
activities associated with waterfront tourism (0.45 t/million Yuan)
outweighed that for marine transportation (0.41 t/million Yuan).
‘Traffic, Transport and Storage’, ‘Production and Supply of Electric
Power and Heat Power’ and ‘Smelting and Rolling of Metals’ were
the top three contributors to the total SO
emission for both
shipping and tourism. Note that for waterfront tourism, 58% of the
total SO
2
2
emission came from ‘Production and Supply of Electric
Power and Heat Power.’ In terms of NO
, the emission intensity for
waterfront tourism (0.47 t/million Yuan) was lower than that for
marine transportation (0.75 t/million Yuan). The two sectors in the
local economy, ‘Traffic, Transport and Storage’ and ‘Production and
Supply of Electric Power and Heat Power,’ dominated the con-
tribution (about 80%) to NO
X
X
emission for both shipping and
tourism.