I think HN is too liberal (in American terms) to focus the Denial Astroturf on. That plays better with more conservative segments. Liberal audiences are fed the Consumer Awareness Cope: drive less and grow your own tomatos on your veranda. Corporations don't cause climate change because consumers need to buy stuff from corporations for them to survive.
And since this is a wealthy and techy audience you can dial up the upper-middle class fantasies of just buying an EV, installing solar on your roofs, and getting Tesla batteries for your own home.
Go a little further still and you reach the Geoengineering Cope... which also fits here...
HN is superficially liberal (in American terms), as a side effect of being a technology community: technology causes progress. I have lived in the American South my entire life, and see that HN has a strong, conservative undercurrent.
And since this is a wealthy and techy audience you can dial up the upper-middle class fantasies of just buying an EV, installing solar on your roofs, and getting Tesla batteries for your own home.
Go a little further still and you reach the Geoengineering Cope... which also fits here...