On the contrary,

A lower level of economic activity, especially in the United States, and Western Europe, will help to save the planet from climate change.

Cut down on airplane flights, save the planet.

Cut down on excessive mindless consumption, this will also go along ways to saving the planet.

If people don't have enough money to have children, this will reduce the population--that will also save the planet.

If people don't have enough money to buy their own single family homes, they can bunk with their parents or extended family. This is a much more efficient use of the planet's precious resources. It takes a Village.

This will also greatly improve the GINI coefficient and tend to make the global economy more equal, hence, more fair.

These are all central core progressive values.

We consume far too much per capita in the USA and Western Europe. Less consumption = more fairness and more peace of mind for everyone.