Was There a Civilization on Earth Before Humans?

A look at the available evidence

It only took five minutes for Gavin Schmidt to out-speculate me.

Schmidt is the director of nasa’s Goddard Institute for Space Studies (a.k.a. GISS), a world-class climate-science facility. One day last year, I came to GISS with a far-out proposal. In my work as an astrophysicist, I’d begun researching global warming from an “astrobiological perspective.” That meant asking whether any industrial civilization that rises on any planet will, through its own activity, trigger its own version of a climate shift.

Continue reading Was There a Civilization on Earth Before Humans? at Alien UFO Sightings.

Related posts:

What if We Aren’t the First Advanced Civilization on Earth? ‘UFO Witness’ Episode 11: Did Betty and Barney Hill really see humanoid aliens before claiming to be abducted? US Army High-ranked Confirms 57 Alien Species Similar To Humans That Walk Among Us NOBEL WINNER: ARTIFICIAL INTELLIGENCE WILL CRUSH HUMANS, “IT’S NOT EVEN CLOSE” Former Apollo Astronaut Claimed Ancient Alien Astronauts Created Humans, Evidence In Sumerian Texts