Carl Sagan: “Every one of the things you would do to ameliorate climate change makes sense on completely separate grounds, they are worth doing apart from climate change.”

I didn't watch the whole video, but just economically your quote makes a whole lot of sense. Saving money and reducing our ecologicial footprint have a lot in common.

• Not having a car, instead riding a bicycle or taking the bus: less greenhouse gases, but also much cheaper.
• Cook your own food instead of buying over-packaged, ultra-processed food. I make my own bread which costs 0.75$/loaf vs. 3$ at the grocery store, for the same weight.
• Buying stuff that lasts not only reduces waste but also costs less in the long run.
• Leisure: reading a book is cheaper than going out.