How? Environmental issues (including but not limited to climate change), are inexorably connected to human activities (including but not limited to economic behaviors that result from practicing economic ideologies). I don't see how we could come up with any workable solution for environmental issues while ignoring a major causal variable.
We already fiddle with our economies. One specific, concrete action we could take would be to stop subsidizing - already profitable - big oil to the tune of billions / year, and redirect those subsidies to R&D for renewables.
Another concrete action would be to stop subsidizing beef production. The cost to the planet of a pound of beef is probably on the order of $20-$30 / pound. The reason we pay a fraction of that is because we - mostly unknowingly - subsidize the cattle industry. Producing a pound of edible mammal requires about 2000-3000 gallons of fresh water. So instead of demanding low flush toilets that might conserve 600 gallons of water per year, we could all eat four fewer big macs per year.
Another concrete action would be to stop subsidizing big agriculture, shift from monoculture farming to techniques like permaculture farming, and stop using pesticides which are only effective in the short term anyway (but are quite profitable).
All of these would have minor impacts on our overall economy.