What I’m saying is that increased insulation is your best energy buy. It’s an old saw but still true : if you want to change the world in a positive way, start doing it at home.
As to GW, it is going on, it’s measureable, but by overly sensitive chicken-little-the-sky-is-falling types who have a control freak mentality; it isn’t all that bad YET. The ancient reducing/anaerobic bacteria O2-excreted themselves out of business, from 3.6 B to .6 B, and into septic tanks. We could just as easily put ourselves out of business as O2 breathers with WASTE HEAT, paving the way for still another kind of organism on the earth-stage.
So you’re saying GW is caused bt CO2?