I'd say "economically viable" is not useful pharsing. It's of course economically viable to slow down the climate catastrophe as the costs will be so vast also

I'd say "economically viable" is not useful pharsing. It's of course economically viable to slow down the climate catastrophe as the costs will be so vast also economically (in addition to humanly, morally, etc) and we have the policy tools to do it. But it's a collective action problem and it needs a lot of international trade coordination and govenrment regulation.