The Conundrum between Fire and Ice (гет)

You see, Nero, an existential question that reaches ordinary minds many times a day is: “What will cause the end of the world as we know it? The sun exploding and scorching Earth, or another ice age courtesy of global warming?”
In synthesis, what is more destructive; fire or ice?
You could also consider the dilemma from a different perspective. What is more destructive, hate or desire?