› Forums › Forum › Is the earth-mass increasing as the solar energy is being used by plants to synthesize food ? This topic has 4 replies, 1 voice, and was last updated 11 years ago by . Creator Topic November 15, 2010 at 3:59 am #23971 AnonymousInactive Up0Down:: Plants use a portion of the sun’s energy to manufacture food. This process is ever-going and since the energy does not return to the sun, should’nt the mass of the earth keep increasing ? Creator Topic You must be logged in to reply to this topic.