We have altered the physical, chemical and biological properties of the planet on a geological scale. We have left no part of the globe untouched.

Scientists and supercomputers have amplified our ability to look ahead. For decades, experts have warned us that human numbers, technology, hyper-consumption and a global economy are altering the chemical, geological, and biological properties of the biosphere.

We have no such weapons at all, no chemical weapons, no biological weapons.

My suspicions are that we'll find [things] in the chemical and biological areas. In fact, I think there may be some surprises coming rather quickly in that area.

Physical body, chemical love, biological existence, mathematical thought, philosophical madness.

From year to year, environmental changes are incremental and often barely register in our lives, but from evolutionary or geological perspectives, what is happening is explosive change.