Switch CO2 MAC for land use emissions OFF for standalone runs (as already done...

Switch CO2 MAC for land use emissions OFF for standalone runs (as already done for coupled run). For each SSP-RCP use emission trajectories from coupled runs (via MOINPUT) without applying the MAC since CO2 LUC emissions are almost the same across (policy) RCPs for a SSP (no MAC needed).

core/datainput.gms

@@ -1046,8 +1046,9 @@ $if %carbonprice% == "NPi2018"  pm_macSwitch(emiMacMagpie) = 0;
 
 *DK* LU emissions are abated in MAgPIE in coupling mode
 *** An alternative to the approach below could be to introduce a new value for c_macswitch that only deactivates the LU MACs
-$if %cm_MAgPIE_coupling% == "on"  pm_macSwitch("co2luc") = 0;
 $if %cm_MAgPIE_coupling% == "on"  pm_macSwitch(enty)$emiMacMagpie(enty) = 0;
+*** As long as there is hardly any CO2 LUC reduction in MAgPIE we dont need MACs in REMIND
+$if %cm_MAgPIE_coupling% == "off"  pm_macSwitch("co2luc") = 0;
 
 pm_macCostSwitch(enty)=pm_macSwitch(enty);
 pm_macSwitch("co2cement_process") =0 ;