I'm looking at the comments here, and I'm reminded of the people that think those of us here in the US that hunt big game, don't care about the environment, and don't care about the preservation of our wildlife... It's truly mind boggling...

Sagan had a foreboding... and more of the difficulties he identifies there. His predictions are understandable.

About a decade earlier his own critical faculties had declined so much that he first attacked and then apologized for attacking an evidence-supported model of the universe.

This is exactly why Betsy DeVos was placed in a job allowing her to contribute to the diminishing American educational system! An ignorant, uneducated American population makes it much easier for swine like the pustule to convince us that what we see isn't there and what he tells us is the ONLY acceptable truth!