CO2 emissions per calorie (food) I have seen several lists with CO2 emissions by weight for producing several different food products. I think this is an interesting consideration, and possible argument for vegetarianism/veganism.

I would however prefer a list with CO2 emissions by calorie, as I feel it is a more useful at estimating consumption. Further more the above lists unfairly disadvantage calorie dense foods, or foods with low water content. I haven't been able to find a detailed list (e.g. this is to coarse for my purposes, but otherwise good), so does anyone know of such a list?

Preferably the list should be location neutral (i.e. if transportation CO2 cost is taken into account it should be general enough to apply for all areas)
I answered this question on SustainableLiving.SE. Since no one voted to close this as off-topic, I'll link and summarize my answer here. 

I'm glad you asked for it by calorie, since answers on that question had found the data by kilogram, which is not a particularly useful measure. The data source for carbon per kilogram is the Meat Eater's Guide from the Climate Working Group (I believe this is the same as the website you linked, as well); I did the kilogram to calorie calculations from nutritiondata.self.com which gets its numbers from the FDA.

You can read my entire answer, but I will copy the data table for your convenience. Units are kg carbon dioxide emitted per 1000 calories. 

Lamb         20.85
Beef         13.78
Turkey        5.83
Broccoli      5.71
Tuna          5.26
Salmon        5.15
Cheese        4.47
Pork          4.45
Yogurt        3.49
Chicken       3.37
Milk          3.17
Eggs          3.06
Rice          2.08
Potatoes      1.46
Beans         1.40
Tomato        1.39
Tofu          1.38
Lentils       0.78
Peanut Butter 0.42
Nuts          0.39