Measure emissions, not raw energy use
Quote
the energy consumption doesn't really doesn't really tell you anything about his impact on the environment, it's really emissions output,
Episode 54: Power to the People. Okay, maybe not as cryptic as some might think. (approx., from transcript intro) 00:17:09 (play audio from this timestamp, opens in a new tab)
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Summary
Praising his guest's focus on emissions, Dave points out that energy consumption alone says little about environmental impact. A lake absorbs huge amounts of solar and geothermal energy with negligible emissions, so emissions output is the meaningful measure.