I studied what the Germans call the Naturwissenschaften, the natural sciences. Everything from biology to geology. How the clouds are formed, how the animals live, and what makes the rocks. So I know about nature. Period.
Evolution has made us omnivores, and substantial quantities of meat can be produced by feeding plant matter whose production does not directly compete with growing food crops: crop residues, food processing waste, low-quality grain, and controlled grazing by ruminants.
The great hope for a quick and sweeping transition to renewable energy is wishful thinking.
Harvesting the biosphere is still the most fundamental human activity. Without that, everybody's dead, really. We could do quite well without microchips, or the business site of 'Atlantic Monthly,' the gated communities, Guccis, and high-growth GDP. But we cannot do without harvesting the crops and cutting down the wood.
No human civilization could ever sever our dependence on photosynthesis.
Killing animals and eating meat have been significant components of human evolution that had a synergistic relationship with other key attributes that have made us human, with larger brains, smaller guts, bipedalism, and language.
People shouldn't be living in certain places - on earthquake faults or on flood plains. But they do, and there are consequences.
In every society, manufacturing builds the lower middle class. If you give up manufacturing, you end up with haves and have-nots, and you get social polarization. The whole lower middle class sinks.
I'm old fashioned. I'm not one of these young guys who think they are so smart that they can prescribe what humanity ought to do. Humanity never learns any lessons. Prescriptions don't matter. We already know exactly what to do. We just don't do it.
U.S. industries from steel-making to plastics synthesis are among the world's most energy-efficient; American agriculture is highly productive, as are America's railroads. But for decades, Americans themselves have been living beyond their means, wasting energy in their houses and cars and amassing energy-intensive throwaway products on credit.
America tends to assume Silicon Valley-style innovators can drive quick and transformative changes, but even Silicon Valley's would-be masters of the universe have discovered that energy transitions are subject to time spans and technical constraints that defy their reach.
The history of energy use is a sequence of transitions to sources that are cheaper, cleaner, and more flexible.