"John Smith" wrote

Global warming, lung diseases caused by the burning
of fossil fuels, pollution of the food supply and the water by toxins enter
the system, etc, etc....

"Bergeron's epitaph for the planet, I remember,
which he said should be carved in big letters in
a wall of the Grand Canyon for the flying-saucer
people to find, was this:

WE COULD HAVE SAVED
BUT WE WERE TOO DOGGONE CHEAP

Only he didn't say 'doggone.' "

- Kurt Vonnegut in "Hocus Pocus"