Is the metal use per person rising?
Metal production compared to population Our World in Data provides statistics on global annual primary production of metals: They also provide population data over the same time period. If we ...
How does the EPA estimate annual power consumption for refrigerators?
10 CFR 430.32 - Energy and water conservation standards and their effective dates is the U.S. government standard defining (among other things) how energy consumption of refrigerators is to be tested. ...
Costs of transportation
You might be able to use some of the data from https://en.wikipedia.org/wiki/Energy_efficiency_in_transport — which includes figures for typical per-passenger efficiency, but not for freight. There ...
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