I have been following LENR topic for a while but I am yet to see any concerns about how an unlimited supply of heat energy would affect global warming. The current situation is that in order for the entire world to have the same per capita energy consumption as the USA we need to increase production seven (7) fold. That is already frightening. Let's imagine that free energy would cause the consumption in the USA to go up four (4) fold then the world would consume twenty eight times more energy than now. Where would all that heat go?