An Atmospheric Carbon Dioxide Level of 450 Ppm Is Widely

question 32

Short Answer

An atmospheric carbon dioxide level of 450 ppm is widely considered to be an irreversible climate change, or ____________________.

---

Definitions:

Psychoanalysis

A therapeutic approach founded by Sigmund Freud focusing on unconscious mental processes and early childhood experiences.

Biological Roots

The genetic, neurochemical, and physiological bases of behavior and mental processes, emphasizing the role of nature in psychology.

What We Know

A phrase indicating the extent of knowledge and understanding that has been established on a particular subject up to the current time.

Opportunity Cost

The loss of potential gain from other alternatives when one alternative is chosen.