Green Lantern 65 page 14 by Mike Sekowsky and Joe Giella 1968

Silver Age DC Comics, published October 1968, from the story “Dry Up... and Die!” When Dr. Neal Emerson discovers an alien menace that will absorb all the water on Earth, he mentally reaches out to Green Lantern, trying to control his mind and bring him to solve the problem. When that doesn't work, he creates a duplicate of his former villainous alter-ago, Dr. Polaris, but cannot control that either, now leaving Green Lantern with two major problems.

Very cool 12 cent comic - enjoy!