> For example, AOC's "Green New Deal" proposal was full of social justice programs. Socialism is often put forward as the solution to climate change, although socialist countries have a very poor track record of environmental stewardship.
Which "socialist" countries are those? Do you mean (ex-)communist countries instead? Socialism != communism.
A better argument you could make is name a socialist country (use whatever definition of socialism works for you) that has a better environmental track record.
Which "socialist" countries are those? Do you mean (ex-)communist countries instead? Socialism != communism.