- Category : 1960-births
- Type : MGE
- Profile : 5/1 - Heretical / Investigator
- Definition : Single
- Incarnation Cross : LAX Migration 1
American scientist, author and blogger, and Professor Emeritus of Natural Resources and Ecology & Evolutionary Biology at the University of Arizona.
McPherson theorizes that the current rate of global warming could cause a global average temperature increase of between >1° and >6° Celcius, making humanity extinct by 2030 at the earliest because a warming of 4° to 6° C will result in "a dead planet."