Almost. But those that did were not listened to as in this case where Carl Sagan clearly explains the situation before policy makers almost 40 yrs ago [1] 1: h

Almost. But those that did were not listened to as in this case where Carl Sagan clearly explains the situation before policy makers almost 40 yrs ago [1] 1: https://youtu.be/Wp-WiNXH6hI https://youtu.be/Wp-WiNXH6hI