Common variables across groups

[realxinzhao]

@danielhuppmann

We (with @flohump and @kanishkan91) are working on Land/AFOLU variable definitions and have some clarifications/coordination questions:

1. Food variables
It seems Food variables are included in SDG variables (#53), which was the tradition (though it's more AFOLU). We are bringing this up because we also have food demand variables (in metric tons, not calories) in Land/AFOLU (for crops and livestock), so some discussion would be useful, as Food availability in kcal/cap/day and in metric ton can be converted to each other using population and the assumed calories contents rates.
Looping @bs538 in.

2. Water variables
There are a few water -AFOLU variables, (water consumption/withdrawal for irrigation and livestock & an irrigation water use efficiency). Is there a water group covering those or they should belong to Land/AFOLU?

3. Ag labor
There is a Employment|Agriculture variable. Was this one covered by macroeconomics?

4. Price variable
Similarly, crop prices would be variables covered by different groups.

Also, is it okay to have the same variables included in different groups/categories? E.g., food prices can be in SDG, AFOLU , and economics.

5. Derived variables
Some variables (included in AR6) were derived variables. E.g., Land Cover|Forest|Share and crop yield (production / harvested area). Was there any discussion on those? I guess we should reduce/remove the unnecessary "derived" variables to avoid mistakes and reduce submission efforts.

Best,
Xin Zhao

[FlorianLeblancDr]

Hi

3. Ag labor There is a Employment|Agriculture variable. Was this one covered by macroeconomics?

Yes this variable will be covered by macroeconomics @IAMconsortium/common-definitions-macro-economy
Currently we are only working on tier 1 variable (PR#57)

Employment|Agriculture is likely to be in tier 2.

5. Derived variables Some variables (included in AR6) were derived variables. E.g., Land Cover|Forest|Share and crop yield (production / harvested area). Was there any discussion on those? I guess we should reduce/remove the unnecessary "derived" variables to avoid mistakes and reduce submission efforts.

This relate to this issue, right? #60

[realxinzhao]

3. Ag labor There is a Employment|Agriculture variable. Was this one covered by macroeconomics?

Yes this variable will be covered by macroeconomics @IAMconsortium/common-definitions-macro-economy Currently we are only working on tier 1 variable (PR#57)

@FlorianLeblancDr Thanks!
Ag employment is claimed in macroeconomics (tier 2), so we should not include it in AFOLU again, right? Or duplications are okay?
Will Ag labor in both the number of people and values (implying wage) be included in macroeconomics?