2 votes
Accepted

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 ...
  • 11.7k
2 votes
Accepted

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. ...
  • 11.7k
1 vote

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 ...
  • 172

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