Tyndall has been misinterpreted for 150 years. Try reading what he actually wrote and have a good hard think about it. “Failure to transmit” IR waves through a long thin tube does NOT equal “absorption of heat energy”. Tyndall said nothing about heating.
One day, someone in physics will repeat tyndall’s experiments and properly quantify the (probably small if any) proportion of energy retained as heat, since it is just as likely to be remitted instantaneously. Even if it shared by conduction with other non-IR absorber/emitters, CO2 will get it back and re-radiate it.