Energie efficientie nauwelijk verbeterd in 50 jaar

It is amazing how little the global energy system has progressed in 70 years. This Sankey diagram, from 1952, looks almost identical today (in aggregate terms)!
Efficiency (primary to final energy) was 35% in 1952, today it is about 40%. Today has much more gas than 1952. ¹ 
Glen Peters

<sub>1. Thread by @Peters_Glen: "It is amazing how little the global energy system has progressed in 70 years. This Sankey diagram, from 1952, looks almost identical today ( […]"
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2. Fig.1 Origin and utilisation of the world's energy in 1952.jpg
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_{3. Fig. 2 World energy flow in 2011.jpg
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