Oh dear I strongly suspect that talking here is not going to do any good I suppose its worth trying In pre industrial times natural sources balanced sinks YOu can tell that because GHG s were stable at 280 ppmv for 10 000 years Since then human emissions have caused the level of CO2 to rise to 380 You do accept that humans are responsible for this increase don t you If you don t you re lost and we may as well give up