15,000 scientists give catastrophic warning about the fate of the world in new ‘letter to humanity’
A new, dire "warning to humanity" about the dangers to all of us has been written by 15,000 scientists from around the world.
The message updates an original warning sent from the Union of Concerned Scientists that was backed by 1,700 signatures 25 years ago. But the experts say the picture is far, far worse than it was in 1992, and that almost all of the problems identified then have simply been exacerbated.
photo credit: The Library of Congress