Carl Sagan Memorial Lecture transcript with speculative commentary on climate change and space launches

Carl Sagan Memorial Lecture transcript with speculative commentary on climate change and space launches The passage is a public lecture containing general scientific speculation and no concrete allegations, names, transactions, or actionable intelligence linking powerful actors to misconduct. It offers no novel investigative leads. Key insights: Speaker references rising CO₂ and increased space launches.; Speculative scenario about alien observers watching Earth.; Mentions a book titled 'Our Final Century' and its title change.