Land-use change and greenhouse gas emissions from corn and cellulosic ethanol

Table 5 Range of LUC GHG emissions (g CO ₂ e/MJ) ^a

	Switchgrass	Miscanthus	Corn stover	Corn
Minimum U.S. LUC GHG emissions	−3.9	−12	−0.24	1.2
Maximum U.S. LUC GHG emissions	13	−3.8	−0.19	7.4
International LUC GHG emissions	6.7	1.7	−0.97	3.5
LUC GHG emissions range	2.7 to 19	−10 to −2.1	−1.21	4.7 to 11
Lifecycle GHG emissions range^b	10 to 26	−8.5 to −0.20	0.97 to 1.0	62 to 68

^a Values presented represent range of results generated at all combinations of surrogate CENTURY (Table 4) and CCLUB modelling parameter settings discussed.
^b Using default GREET parameters [10] and varying only LUC GHG emissions.

ISSN: 2731-3654