411 REFERENCE · Wiktionary
IPAT
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
ipat
English
I = PAT
Proper noun
A formula attempting to describe the impact of human activity on the environment: I = P × A × T, such that the impact is a function of three factors: population, affluence and technology.
1997, National Research Council, Division of Behavioral and Social Sciences and Education, Board on Environmental Change and Society, Environmentally Significant Consumption: Research Directions
IPAT is easily understood, frequently used for illustrative purposes and can discipline our thinking.