John Christy je profesor in direktor Earth System Science Center, Nsstc, Atmospheric Science Department na The University of Alabama
O Johnu Christiyu več na tej povezavi, kjer je za današnji čas ko se razglašajo izredne razmere zaradi podnebnih sprememb posebej zanimiva naslednja navedba ” “Every single person uses energy, carbon energy, and relies on carbon-based energy,” Christy said. “None of our medical advances, none of our technological advances, none of our progress would have happened in the last hundred years without energy derived from carbon.”
Eno izmed njegovih zanimivih predavanj, ki sicer zahteva dobro uro časa, ki pa bo koristno porabljena.