Rex Tillerson

When coal came into the picture, it took about 50 or 60 years to displace timber. Then, crude oil was found, and it took 60, 70 years, and then natural gas. So it takes 100 years or more for some new breakthrough in energy to become the dominant source. Most people have difficulty coming to grips with the sheer enormity of energy consumption.

There are still hundreds of millions, billions of people living in abject poverty around the world. They need electricity. They need electricity they can count on, that they can afford. They need fuel to cook their food on that's not animal dung.

There may be some backward countries where the mass of the people are on a subsistence level and where, as an aftermath of wars or partial crop failures, the standard of living has to be drastically reduced, but this certainly is not the case in our prosperous nations.