In Star Trek Into Darkness, the illusion of rendering the volcano dormant was difficult to create. "The transition from lava to rock was the trickiest part," noted CG simulation supervisor Dan Pearson. (Cinefex, No. 134, p. 81) For more information, see Lava.
The Star Trek Encyclopedia (4th ed., vol. 1, p. 152) defined "cold fusion" as the, "Nuclear process in which molecular kinetic activity is instantly reduced to near-zero." Further, in the notes to the entry, the authors wrote, "Not to be confused with the hypothetical technique of the same name for creating nuclear fusion energy at room temperature."