It's hard to read but it appears that energy consumption per the graph below:
- 1980: 300 exajoules/year
- 2010: 550 exajoules/year (550-300)/300 = an 83% increase in energy consumption
Forecast: 550 x 1.48 = 815 exajoules; 815 - 550 = 265 exajoules.
Although the rate of growth over the next thirty years (at 48%) is significantly less than 83% over the past 30 years, the actual increase in exajoules is 265 exajoules/year more than currently used, and 265 exajoules is almost the total amount of energy consumed in 1980.
1980 was not all that long ago.
In other words, by the time your grandchildren are young adults, the world will be consuming as much energy as it is today plus the same amount of total global energy that was consumed in the 1970s.
By the way, a slight digression: when did the slope of the line begin to move practically straight up? Right after 1950, right after WWII. Energy growth was essentially flat from 1820 to 1930.
The numbers were run some years ago, and it was clear there is not enough surface area globally for wind/solar to make much difference, and in the graph above, wind and solar are so minimal they are not even reflected, so let's get the wind / solar discussion out of the way now.
Nuclear is dead for at least another ten years, which means another 20 years before any meaningful change in a nuclear contribution (and even when nuclear was a player, look how slim the "orange" slice is in the graphic below).
So, that gets us back to coal, oil, and natural gas.
For all the natural gas that has been discovered in past couple of years, look how little changed the consumption of natural gas has been for several decades. I think it's amazing how thick the "green seam" -- oil -- is. And it's my understanding that within the next twenty years, maybe ten years, Saudi Arabia becomes a net importer of oil.
The second biggest story was the "announcement" that oil discoveries are at a 60-year low.
Maybe I'm wrong, but it doesn't seem like it takes a rocket scientist to tell us the 2020 - 2030 decade, from an energy standpoint, is going to be a fascinating decade.
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