grumpyman writes "A coalition of 49 ex-NASA employees, including seven Apollo astronauts, have accused the U.S. space agency of sullying its reputation by taking the 'extreme position' of concluding that carbon dioxide is a major cause of climate change. Is the claim in this letter opinion or fact?"
I have yet to see any problem, however complicated, which, when
you looked at it in the right way, did not become still more complicated.
-- Poul Anderson