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Discrepancy between Emissions Queries and the Set Net-Zero Target #423
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The |
Thank you so much @pkyle. |
Hi all,
I'm using a customized version of GCAM V5.4, where additional CDR methods are added, to run a few net-zero scenarios for Canada. My scenario design excludes emissions from land-use and non-CO2 GHGs. The goal is for CO2 emissions to decline to net-zero by 2050 and remain there for the rest of the century. I set a target of -0.1 MtC, understanding that it's sometimes better not to use overly precise values.
However, when I check the results using the model interface, I notice a discrepancy. The "CO2 emissions by region" query aligns with my target, but when I run the "CO2 emissions by sector" or "CO2 emissions by sector (No bio)" queries and sum their rows, they differ from the "CO2 emissions by region" query and my target. As shown in the figure below, the orange line stays at 0, but the overlapping green lines dip into negative territory toward the end, and they don't match in the initial years either.
Can anyone help me resolve this issue?
Thanks,
Kasra Motlaghzadeh
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