Or, look at it differently: we've increased our renewable energy capacity percentage by 42% over 12 years, even as world energy demand rose. (0.1/0.07 = 1.42)

Or, look at it differently: we've increased our renewable energy capacity percentage by 42% over 12 years, even as world energy demand rose. (0.1/0.07 = 1.42) This is great news! In about 75 years, we'll use >90% renewable energy. (1.42^(x/12) = 0.9/0.1) Which of these is the better model? I don't know, I can't eyeball statistical regression on this chart. But my gut says percentage of energy use growth isn't what we should pay attention to if we want to predict the long run future. When/if renewables become far cheaper than coal, that percentage is going to skyrocket fast.