Like the development of global industry would have still emmited more greenhouse gases than the earth's ecosystem could handle.
But instead of 50 years of denying it and 10+ years of doing nothing about it it'd have been started on earlier.
Plus instead of having all the labor going into putting roller coasters on cruise ships it'd be going towards not destroying the globe for profit.
there's definitely a parallel universe where socialism wins globally by 1950, we get the first indications that we may be causing climate change in the 1960s, and then there's a massive global effort to develop new renewable technologies and switch to nuclear which would be finishing up by now. still some climatic disasters and maybe not totally carbon zero yet but much lower emissions and disasters are adequately prepared for and the victims properly cared for.
:ussr-cry: