<The group, which includes seven Apollo astronauts and two former directors of NASA’s Johnson Space Center in Houston, are dismayed over the failure of NASA, and specifically the Goddard Institute For Space Studies (GISS), to make an objective assessment of all available scientific data on climate change.>
So when you say "a lot", what you mean to say is that 7 astronauts did. That's equivalent to 15% of active astronauts who are currently active or 2% from the total amount of astronauts ever active.
Remember my question isn't, "Since these NASA scientists say that Climate change isn't real, therefore it isn't real". So don't try to answer THAT question.
Its frankly incredibly odd that you're seeing this question you've posed as the focus of discussion. Your initial claim was that the working class is "staunchly conservative". Your question doesn't change that claim.
Source?